JP6156069B2 - Control device - Google Patents

Description

  The present invention relates to a control device, and more particularly to a control device that controls an internal combustion engine and a rotating electrical machine that rotationally drive wheels.

  2. Description of the Related Art Conventionally, there has been known a control device including constant speed traveling control means for controlling driving of an internal combustion engine and a rotating electrical machine so that a vehicle travels at a predetermined speed. For example, in the control device described in Patent Document 1, when the constant speed traveling control means is turned on when the internal combustion engine is in a state before completion of warm-up, the torque distribution to the rotating electrical machine is distributed to the internal combustion engine with respect to the total required torque. Distributes more than torque distribution. Thereby, the torque output from the cold internal combustion engine before warm-up is suppressed, and the friction loss in the internal combustion engine is reduced.

JP 2006-315631 A

However, in the control device of Patent Document 1, since the torque output from the internal combustion engine is suppressed until the warm-up of the internal combustion engine is completed, the time required for the warm-up completion of the internal combustion engine may be increased. For this reason, there is a risk of increasing noise due to the clearance of the cooled internal combustion engine, or worsening fuel consumption by rotating the cooled internal combustion engine with a large friction loss for a long period of time.
Further, in the control device of Patent Document 1, until the internal combustion engine is completely warmed up, the vehicle is driven mainly by the torque output from the rotating electrical machine, so the charge amount of the battery that supplies electric power to the rotating electrical machine decreases. However, there is a possibility that “EV traveling” in which the vehicle is driven only by the torque of the rotating electrical machine may be disabled.

  The present invention has been made in view of the above-described problems, and a purpose thereof is a control device capable of completing warm-up of an internal combustion engine in a short period of time while performing control for causing the vehicle to travel at a predetermined speed. Is to provide.

The present invention drives an internal combustion engine capable of rotationally driving a vehicle wheel and a rotating electrical machine capable of rotating the wheel by electric power supplied from a battery and generating electric power by being rotated by the internal combustion engine and charging the battery. A control device for controlling, comprising a control unit and a warm-up state detecting means.
The control unit controls driving of the internal combustion engine and the rotating electrical machine so that the vehicle travels at a speed requested by the driver of the vehicle. The warm-up state detection means can detect a state related to warm-up of the internal combustion engine. In the present invention, the control unit includes a constant speed traveling control unit, a required power calculating unit, a required power changing unit, and a drive control unit.

  The constant speed running control means, when turned on by the driver of the vehicle, controls the driving of the internal combustion engine and the rotating electrical machine so as to maintain the speed of the vehicle when turned on. The required power calculation means is an internal combustion engine required power that is a required power for the internal combustion engine and a rotary electric machine that is a required power for the rotary electric machine based on a request from the vehicle driver or a request from the constant speed traveling control means. Calculate the required power.

  The required power changing means detects the internal combustion engine by the warm-up state detecting means when the constant-speed running control means is turned on when the warm-up state detecting means detects that the internal combustion engine is in a state before the warm-up is completed. The internal combustion engine required power is made larger than the internal combustion engine required power and the rotating electrical machine required power before the constant speed traveling control means is turned on, and the rotating electrical machine required power is Make it smaller. The drive control means controls the drive of the internal combustion engine so that the internal combustion engine required power calculated by the required power calculation means or changed by the required power change means is output from the internal combustion engine, and calculated by the required power calculation means, or The drive of the rotating electrical machine is controlled so that the required rotating electrical machine power changed by the required power changing means is output from the rotating electrical machine.

  In the present invention, when the constant speed traveling control means is turned on when the internal combustion engine is in a state before completion of warming up, the internal combustion engine before the constant speed traveling control means is turned on until the warming up of the internal combustion engine is completed. The internal combustion engine required power is made larger than the required power. Therefore, at this time, the power output from the internal combustion engine controlled by the drive control means increases. Thereby, warming up of the internal combustion engine is promoted, and warming up is completed in a short period of time. As a result, it is possible to suppress noise caused by the clearance of the cold internal combustion engine and the like, and to suppress deterioration in fuel consumption caused by rotating the cold internal combustion engine having a large friction loss for a long period of time.

  Further, in the present invention, when the constant speed traveling control means is turned on when the internal combustion engine is in a state before the warm-up is completed, the constant speed traveling control means is turned on until the warm-up of the internal combustion engine is completed. The rotating electrical machine required power is made smaller than the rotating electrical machine required power. Therefore, at this time, the power output from the rotating electrical machine controlled by the drive control means becomes small. Thereby, the fall of the charge amount of a battery can be suppressed. At this time, if the rotating electrical machine is rotated by the power output from the internal combustion engine to charge the battery, the charge amount of the battery can be maintained at a predetermined value or more while promoting warm-up of the internal combustion engine. Therefore, it is possible to avoid a situation in which “EV traveling” becomes impossible after the warm-up of the internal combustion engine is completed.

The schematic diagram which shows the control apparatus by one Embodiment of this invention, and the vehicle using the same. The flowchart which shows the process regarding "required power change control" by the control apparatus of one Embodiment of this invention. The block diagram which shows a part of "required power calculation means" of the control apparatus by one Embodiment of this invention. The block diagram which shows a part of "request power change means" of the control apparatus by one Embodiment of this invention. The time chart which shows the change of the state of each part when controlling a vehicle by the control apparatus of one Embodiment of this invention.

Hereinafter, a control device according to an embodiment of the present invention will be described with reference to the drawings.
(One embodiment)
FIG. 1 shows a control device according to an embodiment of the present invention and a vehicle using the same.

A vehicle 1 includes a front wheel 2 as a wheel, a rear wheel 3, an axle 4, an axle 5, a transmission 6, an engine 20 as an internal combustion engine, a motor 30 as a rotating electric machine, an inverter 40, a battery 50, and an electronic control unit as a control device. (Hereinafter referred to as “ECU”) 10, a water temperature sensor 61, a vehicle speed sensor 62, a constant speed travel switch 71, and the like.
The front wheels 2 are provided at both ends of the axle 4 so as to be rotatable together with the axle 4. The rear wheel 3 is provided at both ends of the axle 5 so as to be rotatable together with the axle 5. The rear wheel 3 is provided behind the vehicle 1 with respect to the front wheel 2.

  The transmission 6 is provided on the axle 4. The engine 20 is an internal combustion engine that rotates using, for example, gasoline as fuel, and outputs torque from a crankshaft (not shown). Torque output from the crankshaft is transmitted to the front wheels 2 via the transmission 6. Thereby, the engine 20 can rotationally drive the front wheel 2.

The motor 30 is a brushless motor that is rotated by electric power supplied from the battery 50, and outputs torque from a motor shaft (not shown). Torque output from the motor shaft is transmitted to the front wheels 2 via the transmission 6. Thereby, the motor 30 can rotationally drive the front wheel 2.
Thus, the vehicle 1 is a so-called hybrid vehicle that travels by torque output from the engine 20 and the motor 30.

  The ECU 10 has a microcomputer 11. The microcomputer 11 is a small computer having a CPU, a ROM, a RAM, an I / O, and the like, performs calculations according to programs stored in the ROM based on signals from various sensors provided in the vehicle 1, and the vehicle 1. Control the operation of devices and equipment mounted on the.

  The water temperature sensor 61 is provided so that the temperature of the cooling water of the engine 20 can be detected. The water temperature sensor 61 transmits a signal related to the detected coolant temperature of the engine 20 to the microcomputer 11. Thereby, the microcomputer 11 can detect the temperature of the coolant of the engine 20 and the state related to warming up of the engine 20. For example, when the temperature detected by the water temperature sensor 61 is equal to or lower than a predetermined value, the microcomputer 11 determines that “the engine 20 has not been warmed up”, and when the temperature detected by the water temperature sensor 61 is higher than the predetermined value, It is determined that “warming up of the engine 20 has been completed”. Here, the water temperature sensor 61 and the microcomputer 11 correspond to “warm-up state detection means” in claims.

The vehicle speed sensor 62 is provided in the vicinity of the front wheel 2 or the rear wheel 3, for example, and detects the speed of the vehicle 1, that is, the vehicle speed. The vehicle speed sensor 62 transmits a signal related to the detected vehicle speed to the microcomputer 11. Thereby, the microcomputer 11 can detect the vehicle speed of the vehicle 1.
Further, the microcomputer 11 can detect the amount of charge of the battery 50 by inputting an SOC (State of Charge) signal.

The microcomputer 11 controls the driving of the engine 20 and the motor 30 based on a signal transmitted from an accelerator device (not shown), that is, the accelerator opening and the vehicle speed detected by the vehicle speed sensor 62.
Specifically, as shown in FIG. 3, the microcomputer 11 is based on the “driving force map indicating the correspondence between the accelerator opening, the vehicle speed, and the driving force”, the accelerator opening, and the vehicle speed stored in the ROM. The “required driving force” is calculated, and the “required driving force” is multiplied by the vehicle speed to calculate “required driving power”. Then, the calculated “vehicle travel required power” is appropriately distributed to the engine 20 and the motor 30, and the driving of the engine 20 and the motor 30 is controlled so that the allocated required power is output from the engine 20 and the motor 30, respectively. At this time, the required power allocated to the engine 20 is referred to as an internal combustion engine required power (hereinafter referred to as “engine required power”), and the required power allocated to the motor 30 is referred to as rotating electrical machine required power (hereinafter referred to as “motor required power”). That's it.

The microcomputer 11 controls the drive of the engine 20 so that the calculated engine required power is output from the engine 20 by controlling a throttle valve, a fuel injection device, an ignition device, and the like (not shown).
On the other hand, the microcomputer 11 controls the operation of the inverter 40, converts the DC power from the battery 50 into AC power, and supplies it to the motor 30, so that the calculated motor required power is output from the motor 30. 30 drive is controlled. Further, the motor 30 can generate electric power by being rotated by the engine 20. When the motor 30 is rotated by the engine 20, the microcomputer 11 controls the operation of the inverter 40 to convert the AC power generated by the motor 30 into DC power and supply the battery 50, that is, charge the battery 50. Can do.

  Thus, the microcomputer 11 controls the driving of the engine 20 and the motor 30 based on the signal from the accelerator device operated by the driver. Thereby, the vehicle 1 travels at a speed requested by the driver. Such control by the microcomputer 11 is referred to as “normal traveling control”. Here, the microcomputer 11 corresponds to a “control unit” in claims.

  The constant speed travel switch 71 is provided at a position where the driver in the vehicle 1 can operate. When the driver turns on the constant speed travel switch 71, an on signal is transmitted from the constant speed travel switch 71 to the microcomputer 11. When the on signal is transmitted from the constant speed travel switch 71, the microcomputer 11 controls the driving of the engine 20 and the motor 30 so as to maintain the speed of the vehicle 1 at that time (a predetermined value or more). In the present embodiment, the microcomputer 11 uses the speed when the constant speed travel switch 71 is turned on as an initial value, and controls the speed to be constant by PI control.

  Specifically, the microcomputer 11 calculates “vehicle travel request power” based on the accelerator opening, the vehicle speed, and the driving force map shown in FIG. The power and the required motor power are calculated, and the driving of the engine 20 and the motor 30 is controlled. Here, the accelerator opening is not a signal transmitted from the accelerator device operated by the driver, but is an accelerator opening virtually calculated for controlling the vehicle speed.

  As described above, when the driver turns on the constant speed travel switch 71, the microcomputer 11 controls the driving of the engine 20 and the motor 30 so that the vehicle 1 travels at a constant speed. Such control by the microcomputer 11 is referred to as “constant speed running control”. Here, the constant speed travel switch 71 and the microcomputer 11 correspond to “constant speed travel control means” in the claims.

  As described above, the microcomputer 11 calculates the engine required power and the motor required power based on the request from the driver of the vehicle 1 or the request from the “constant speed traveling control means”. Here, the microcomputer 11 functions as “required power calculation means” in the claims. Further, “normal traveling control” and “constant speed traveling control” by the microcomputer 11 are referred to as “normal control”.

In the present embodiment, the microcomputer 11 performs “required power change control” different from “normal control” when the constant speed travel switch 71 is turned on before the warm-up of the engine 20 is completed. This required power change control will be described with reference to FIG.
A series of processing S100 shown in FIG. 2 is started when the ignition switch of the vehicle 1 is turned on.

  In S <b> 101, the microcomputer 11 determines whether or not the engine 20 has been warmed up based on the coolant temperature of the engine 20 detected by the water temperature sensor 61. Specifically, for example, when the temperature detected by the water temperature sensor 61 is 50 degrees or less, the microcomputer 11 determines that “the engine 20 has not been warmed up” and the temperature detected by the water temperature sensor 61 is 50. If it is greater than the degree, it is determined that “warming up of the engine 20 has been completed”.

  If it is determined that “warming up of the engine 20 has not been completed”, that is, “the engine 20 is in a state before warming up” (S101: NO), the process proceeds to S102. On the other hand, if it is determined that “warming up of the engine 20 has been completed” (S101: YES), the process exits a series of processes S100 and shifts to “normal control”.

  In S102, the microcomputer 11 determines whether or not the driver has requested constant speed travel, that is, whether or not the constant speed travel switch 71 is turned on. If it is determined that the constant speed travel switch 71 is turned on (S102: YES), the process proceeds to S103. On the other hand, when it is determined that the constant speed travel switch 71 is not turned on (S102: NO), the process exits a series of processes S100 and shifts to "normal control".

  In S103, the microcomputer 11 calculates “vehicle travel request power”. Here, the “required vehicle travel power” is calculated by the same method as in the “constant speed travel control” described above (see FIG. 3). After S103, the process proceeds to S104.

In S104, the microcomputer 11 calculates “battery charge / discharge required power”.
Specifically, as shown in FIG. 4, the microcomputer 11 determines that “charging power necessary for the engine 20 to have the highest efficiency” (power necessary for maximizing the efficiency of the engine 20) and “ The smaller one of “maximum chargeable power of battery 50” (power corresponding to the maximum chargeable power of battery 50) is selected and calculated as “required battery charge / discharge power”. Here, “charging power necessary for the efficiency of the engine 20 to be the highest efficiency” is the charging power to the battery 50 when the efficiency of the engine 20 becomes the highest efficiency, for example, according to a map stored in the ROM. It is calculated by subtracting the calculated “engine power at which the efficiency of the engine 20 is the highest efficiency” from the “required vehicle travel power” calculated in S103. The “maximum chargeable power of the battery 50” is the maximum power that can be charged in the battery 50, and is calculated based on the performance of the battery 50.

In the present embodiment, the calculated “battery charge / discharge required power” value is limited based on the vehicle speed. For example, as shown in FIG. 4, the value of “battery charge / discharge required power” is calculated to decrease as the vehicle speed decreases.
In the present embodiment, the calculated “battery charge / discharge required power” value is limited based on the charge amount of the battery 50. For example, as shown in FIG. 4, when the charge amount (SOC value) of the battery 50 is 75% or more, the value of “required battery charge / discharge power” is set to zero.
After S104, the process proceeds to S105.

  In S105, the microcomputer 11 calculates “engine required power”. Specifically, the “engine required power” is calculated by adding the “battery charge / discharge required power” calculated in S104 to the “vehicle required power” calculated in S103. After S105, the process proceeds to S106.

  In S <b> 106, the microcomputer 11 calculates “motor required power”. Specifically, the “motor required power” is calculated by subtracting the “engine required power” calculated in S105 from the “vehicle required power” calculated in S103. After S106, the process proceeds to S107.

  In S107, the microcomputer 11 controls the drive of the engine 20 so that the “engine required power” calculated in S105 is output from the engine 20, and the motor so that the “motor required power” calculated in S106 is output from the motor 30. 30 drive is controlled. Here, the microcomputer 11 functions as “drive control means” in the claims.

When the “motor required power” calculated in S106 is a positive value, in S107, the motor 30 is controlled to be powered (driven, discharged). On the other hand, when the “motor required power” calculated in S106 is a negative value, the motor 30 is controlled to regenerate (power generation, charging) in S107.
After S107, the process exits the series of processes S100.

  After S107, when the process exits the series of processes S100, if the ignition switch is on, S100 is executed again. That is, the series of processes S100 is a process that is repeatedly executed while the ignition switch is on.

  In the present embodiment, when the microcomputer 11 detects that the engine 20 is in a state before the warm-up is completed by executing the above-described processing S100, the engine 11 is turned on when the constant speed travel switch 71 is turned on. Until it is detected that the warm-up of 20 is completed, the engine required power is made larger and the motor required power is made smaller than the engine required power and the motor required power before the constant speed travel switch 71 is turned on ( S104-106). Here, the microcomputer 11 functions as “required power changing means” in the claims.

In the present embodiment, when the microcomputer 11 functions as “required power changing means” and increases the engine required power, the engine required power is “power corresponding to the maximum power that can be charged by the battery 50” or “engine 20”. The required engine power is increased so that the power required for maximizing the efficiency of the engine is satisfied (S104, see FIG. 4).
In the present embodiment, when the microcomputer 11 functions as “required power changing means” and increases the engine required power, the engine 11 increases the engine required power based on the traveling speed of the vehicle 1 as the traveling speed of the vehicle 1 decreases. The degree of increase is reduced (S104, see FIG. 4).

  In the present embodiment, when the microcomputer 11 functions as “required power changing means”, when the engine required power is equal to or greater than a predetermined value, the engine required power is increased even when the constant speed travel switch 71 is turned on. do not do. Here, the predetermined value is a value of the required engine power that maximizes the efficiency of the engine 20 (S104, see FIG. 4).

Next, an example of control of the engine 20 and the motor 30 by the ECU 10 of the present embodiment will be described based on FIG.
When the “vehicle travel required power” is calculated to a predetermined value by operating the accelerator device at time t0, the “vehicle travel required power” is appropriately set to “engine required power” and “motor required power”. To be distributed. As a result, the engine 20 is driven to output “engine required power”, and the motor 30 is driven to output “motor required power”. Here (after time t0), since “engine required power” is smaller than “vehicle travel required power”, “motor required power” is a positive value, and motor 30 is powered.

  When the constant speed travel switch 71 is turned on by the driver at time t1, it is determined that the engine 20 is in a state before the warm-up is completed, so the engine required power and motor before the constant speed travel switch 71 is turned on The engine required power is made larger than the required power, and the motor required power is made smaller (required power change control). Thereby, the power output from the engine 20 is increased, and warming up of the engine 20 is promoted. Here (after time t1), since “engine required power” is larger than “vehicle travel required power”, “motor required power” is a negative value, and motor 30 is regenerated. Thereby, the battery 50 is charged.

  When the water temperature sensor 61 detects that the engine 20 has been warmed up at time t2, the microcomputer 11 returns to normal control. Thereby, the microcomputer 11 controls the drive of the engine 20 and the motor 30 after the time t2, similarly to the control at the times t0 to t1.

As described above, (1) the ECU 10 of the present embodiment can rotate the front wheel 2 by the engine 20 that can rotate the front wheel 2 of the vehicle 1 and the electric power supplied from the battery 50 and can rotate by the engine 20. Thus, the control device controls the driving of the motor 30 that can generate electricity and charge the battery 50, and includes a microcomputer 11 and a water temperature sensor 61.
The microcomputer 11 controls driving of the engine 20 and the motor 30 so that the vehicle 1 travels at a speed requested by the driver of the vehicle 1. The water temperature sensor 61 and the microcomputer 11 can detect a state related to warming up of the engine 20. In the present embodiment, the microcomputer 11 functions as a constant speed traveling control unit, a required power calculation unit, a required power change unit, and a drive control unit.

  The microcomputer 11 functions as “constant speed traveling control means”. When the constant speed traveling switch 71 is turned on by the driver of the vehicle 1, the engine 20 and the motor 30 are maintained so as to maintain the speed of the vehicle 1 when it is turned on. Control the drive. Further, the microcomputer 11 functions as “required power calculation means”, and based on a request by the driver of the vehicle 1 or a request by the constant speed traveling control means, an engine required power that is a required power to the engine 20, and The required motor power that is the required power to the motor 30 is calculated.

  Further, when the microcomputer 11 functions as “required power changing means” and the water temperature sensor 61 detects that the engine 20 is in a state before the warm-up is completed, when the constant speed travel switch 71 is turned on, Until the water temperature sensor 61 detects that the engine 20 has been warmed up, the engine required power is made larger than the engine required power and the motor required power before the constant speed travel switch 71 is turned on. Reduce power.

  The microcomputer 11 functions as a “drive control unit” and controls the drive of the engine 20 so that the engine required power calculated by the required power calculation unit or changed by the required power change unit is output from the engine 20. The driving of the motor 30 is controlled so that the motor required power calculated by the required power calculating means or changed by the required power changing means is output from the motor 30.

  In the present embodiment, when the constant speed travel switch 71 is turned on when the engine 20 is in a state before the warm-up is completed, the engine before the constant speed travel switch 71 is turned on until the warm-up of the engine 20 is completed. The required engine power is made larger than the required power. Therefore, at this time, the power output from the engine 20 controlled by the microcomputer 11 increases. Thereby, warming up of the engine 20 is promoted, and warming up is completed in a short period of time. As a result, it is possible to suppress noise caused by the clearance of the cold engine 20 and the like, and to suppress deterioration in fuel consumption caused by rotating the cold engine 20 having a large friction loss for a long period of time.

  Further, in the present embodiment, when the constant speed travel switch 71 is turned on when the engine 20 is in a state before the warm-up is completed, before the constant speed travel switch 71 is turned on until the warm-up of the engine 20 is completed. The required motor power is made smaller than the required motor power. Therefore, at this time, the power output from the motor 30 controlled by the microcomputer 11 becomes small. Thereby, the fall of the charge amount of the battery 50 can be suppressed. At this time, if the motor 30 is rotated by the power output from the engine 20 to charge the battery 50, the charge amount of the battery 50 can be maintained at a predetermined value or more while promoting warm-up of the engine 20. it can. Therefore, it is possible to avoid a situation where “EV traveling” becomes impossible after the warm-up of the engine 20 is completed.

  In the present embodiment, (2) when the microcomputer 11 functions as “required power changing means” and increases the engine required power, the engine required power is “power corresponding to the maximum power that can be charged by the battery 50” or The required engine power is increased so as to be the smaller of “power required to maximize the efficiency of the engine 20”. Thereby, warm-up of the engine 20 can be promoted and fuel consumption can be improved.

  In the present embodiment, (3) when the microcomputer 11 functions as “required power changing means” and increases the required engine power, the engine 11 increases as the traveling speed of the vehicle 1 decreases based on the traveling speed of the vehicle 1. Decrease the degree to increase the required power. Thereby, the quietness when the vehicle 1 travels at a low speed can be improved.

  In the present embodiment, (4) when the microcomputer 11 functions as the “required power changing means”, the engine request is required even when the constant speed travel switch 71 is turned on when the engine required power is a predetermined value or more. Do not increase power. (5) Here, the predetermined value is a value of required engine power at which the efficiency of the engine 20 is maximized. Thereby, coexistence with promotion of warming-up of the engine 20 and improvement of a fuel consumption can be aimed at.

  In the present embodiment, if the motor 30 driving state when the motor required power is a positive value is “power running” and the motor 30 driving state when the motor required power is a negative value is “regenerative”, the microcomputer 11 functions as “required power changing means”, and when the motor required power is reduced, not only the power running value is decreased, but also the regeneration value may be increased.

(Other embodiments)
In the above-described embodiment, the microcomputer 11 functions as “required power calculation means” and is the required power to the engine 20 based on a request by the driver of the vehicle 1 or a request by the “constant speed traveling control means”. An example of calculating the required engine power and the required motor power that is the required power to the motor 30 has been shown. On the other hand, in another embodiment of the present invention, the microcomputer 11 functions as “required torque calculation means”, and is based on a request from the driver of the vehicle 1 or a request from the “constant speed travel control means”. The engine required torque that is the required torque for the motor 20 and the motor required torque that is the required torque for the motor 30 may be calculated.

  In the above-described embodiment, the constant speed travel switch 71 is turned on when the microcomputer 11 functions as the “required power changing unit” and detects that the engine 20 is in a state before the warm-up is completed. In this case, the engine required power is made larger than the engine required power and the motor required power before the constant speed travel switch 71 is turned on and the motor required power is increased until it is detected that the warm-up of the engine 20 has been completed. An example of making it smaller was shown. On the other hand, in another embodiment of the present invention, the microcomputer 11 functions as “required torque changing means” and detects that the engine 20 is in a state before the warm-up is completed. When 71 is turned on, the engine required torque is made larger than the engine required torque and the motor required torque before the constant speed travel switch 71 is turned on until it is detected that the warm-up of the engine 20 has been completed, and The motor required torque may be reduced.

  In the above-described embodiment, the microcomputer 11 functions as a “drive control unit”, and the engine 20 outputs the engine request power calculated by the request power calculation unit or changed by the request power change unit from the engine 20. In this example, the driving of the motor 30 is controlled so that the motor required power calculated by the required power calculating means or changed by the required power changing means is output from the motor 30. On the other hand, in another embodiment of the present invention, the microcomputer 11 functions as a “drive control unit”, and the engine request torque calculated by the request torque calculation unit or changed by the request torque change unit is output from the engine 20. The drive of the engine 20 may be controlled so that the motor 30 is output so that the motor request torque calculated by the request torque calculation means or changed by the request torque change means is output from the motor 30.

  In the other embodiments described above, when the constant speed travel switch 71 is turned on when the engine 20 is in a state before the warm-up is completed, the constant speed travel switch 71 is turned on until the warm-up of the engine 20 is completed. The engine request torque is made larger than the previous engine request torque. Therefore, at this time, the torque output from the engine 20 controlled by the microcomputer 11 increases. Thereby, warming up of the engine 20 is promoted, and warming up is completed in a short period of time. As a result, it is possible to suppress noise caused by the clearance of the cold engine 20 and the like, and to suppress deterioration in fuel consumption caused by rotating the cold engine 20 having a large friction loss for a long period of time.

  In the above-described other embodiments, when the constant speed travel switch 71 is turned on when the engine 20 is in a state before the warm-up is completed, the constant speed travel switch 71 remains on until the warm-up of the engine 20 is completed. The motor request torque is made smaller than the motor request torque before the operation. Therefore, at this time, the torque output from the motor 30 controlled by the microcomputer 11 becomes small. Thereby, the fall of the charge amount of the battery 50 can be suppressed. At this time, if the motor 30 is rotated by the torque output from the engine 20 to charge the battery 50, the charge amount of the battery 50 can be maintained at a predetermined value or more while promoting warm-up of the engine 20. it can.

  In another embodiment of the present invention, when the required power changing means increases the internal combustion engine required power, the internal combustion engine required power is “power corresponding to the maximum power that can be charged by the battery” or “efficiency of the internal combustion engine”. The required power of the internal combustion engine may be increased so as to be the larger of the “power required to maximize the power”.

  Further, in the above-described embodiment, when the required power changing means increases the internal combustion engine required power, the extent to which the internal combustion engine required power is increased is reduced as the vehicle traveling speed is lower, based on the vehicle traveling speed. An example is shown. On the other hand, in another embodiment of the present invention, when the required power changing means increases the internal combustion engine required power, the required power changing means increases the internal combustion engine required power as the vehicle traveling speed decreases based on the traveling speed of the vehicle. You may enlarge the grade to do. Further, the required power of the internal combustion engine may be increased regardless of the traveling speed of the vehicle.

  In the above-described embodiment, the example in which the required power changing unit does not increase the required internal combustion engine power even when the constant speed traveling control unit is turned on when the required internal combustion engine power is greater than or equal to a predetermined value has been described. On the other hand, in another embodiment of the present invention, the required power changing means increases the internal combustion engine required power when the constant speed traveling control means is turned on when the internal combustion engine required power is a predetermined value or more. Also good. The predetermined value may be a value of required internal combustion engine power that maximizes the efficiency of the internal combustion engine, or may be a value other than that.

The control device of the present invention is not limited to a vehicle including one internal combustion engine and one rotating electric machine, and can be applied to a vehicle including one internal combustion engine and a plurality of rotating electric machines, for example. In this case, the required value of the sum of the power or torque output from the plurality of rotating electrical machines corresponds to “rotating electrical machine required power” or “rotating electrical machine required torque”.
Thus, the present invention is not limited to the above-described embodiments, and can be applied to various forms without departing from the gist thereof.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 2 ... Wheel 10 ... ECU (control apparatus, electronic control unit)
11... Microcomputer (control unit, warm-up state detection means, constant speed traveling control means, required power calculation means, required power change means, drive control means)
20 ... Engine (internal combustion engine)
30 ・ ・ ・ Motor (rotary electric machine)
50 ... Battery 61 ... Water temperature sensor (warm-up state detection means)

Claims (6)

An internal combustion engine (20) capable of rotationally driving the wheels (2) of the vehicle (1) and electric power supplied from a battery (50) can be driven to rotate the wheels, and generate electric power by being rotated by the internal combustion engine. A control device (10) for controlling driving of a rotating electrical machine (30) capable of charging the battery,
A control unit (11) for controlling driving of the internal combustion engine and the rotating electrical machine so that the vehicle travels at a speed requested by a driver of the vehicle;
Warm-up state detection means (61, 11) capable of detecting a state related to warm-up of the internal combustion engine,
The controller is
A constant speed traveling control means (11) for controlling the driving of the internal combustion engine and the rotating electrical machine so as to maintain the speed of the vehicle when the vehicle driver is turned on when the vehicle driver is turned on.
Based on a request by the driver of the vehicle or a request by the constant speed traveling control means, an internal combustion engine required power that is a required power to the internal combustion engine, and a rotating electrical machine required power that is a required power to the rotating electrical machine Required power calculation means (11) for calculating
When it is detected by the warm-up state detection means that the internal combustion engine is in a state before completion of warm-up, when the constant speed running control means is turned on, the warm-up state detection means causes the internal combustion engine to The internal combustion engine required power is made larger than the internal combustion engine required power and the rotating electrical machine required power before the constant speed traveling control means is turned on until it is detected that the warm-up is completed, and the rotation Request power changing means (11) for reducing the required power of the electric machine, and
Controlling the driving of the internal combustion engine so that the internal combustion engine required power changed by the required power calculating means or output by the required power changing means is output from the internal combustion engine, and calculated by the required power calculating means, or A control device comprising drive control means (11) for controlling the drive of the rotating electrical machine so that the rotating electrical machine required power changed by the required power changing means is output from the rotating electrical machine. When the required power change means increases the internal combustion engine required power , the internal combustion engine required power is calculated based on the "vehicle travel required power" calculated based on the accelerator opening and the vehicle speed. To be the sum of “power required for battery charging / discharging” calculated by selecting the smaller of “power corresponding to electric power” or “power necessary for maximizing the efficiency of the internal combustion engine ” , The control device according to claim 1, wherein the internal combustion engine required power is increased.   The required power changing means, when increasing the internal combustion engine required power, reduces the degree of increasing the internal combustion engine required power based on the traveling speed of the vehicle as the traveling speed of the vehicle decreases. The control device according to claim 1 or 2.   The demand power changing means does not increase the demand power of the internal combustion engine even when the constant speed traveling control means is turned on when the demand power of the internal combustion engine is a predetermined value or more. 4. The control device according to any one of 3.   The control device according to claim 4, wherein the predetermined value is a value of the required power of the internal combustion engine that maximizes the efficiency of the internal combustion engine. An internal combustion engine (20) capable of rotationally driving the wheels (2) of the vehicle (1) and electric power supplied from a battery (50) can be driven to rotate the wheels, and generate electric power by being rotated by the internal combustion engine. A control device (10) for controlling driving of a rotating electrical machine (30) capable of charging the battery,
A control unit (11) for controlling driving of the internal combustion engine and the rotating electrical machine so that the vehicle travels at a speed requested by a driver of the vehicle;
Warm-up state detection means (61, 11) capable of detecting a state related to warm-up of the internal combustion engine,
The controller is
A constant speed traveling control means (11) for controlling the driving of the internal combustion engine and the rotating electrical machine so as to maintain the speed of the vehicle when the vehicle driver is turned on when the vehicle driver is turned on.
Based on a request by the driver of the vehicle or a request by the constant speed traveling control means, an internal combustion engine required torque that is a required torque for the internal combustion engine, and a rotating electrical machine required torque that is a required torque for the rotating electrical machine Required torque calculation means (11) for calculating
When it is detected by the warm-up state detection means that the internal combustion engine is in a state before completion of warm-up, when the constant speed running control means is turned on, the warm-up state detection means causes the internal combustion engine to The internal combustion engine required torque is made larger than the internal combustion engine required torque and the rotating electrical machine required torque before the constant speed running control means is turned on until it is detected that the warm-up is completed, and the rotation Required torque changing means (11) for reducing the required electric torque, and
Control the drive of the internal combustion engine so that the internal combustion engine required torque calculated by the required torque calculating means or changed by the required torque changing means is output from the internal combustion engine, and calculated by the required torque calculating means, or A control device comprising drive control means (11) for controlling driving of the rotating electrical machine so that the rotating electrical machine required torque changed by the required torque changing means is output from the rotating electrical machine.

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