JP2931144B2 - Electric car driving support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle driving support device installed in a driver's cab or a conductor's cabin of an electric vehicle and used for driving an electric vehicle.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing a configuration of a conventional electric vehicle driving support device. A large number of display devices 51, meters 55, indicator lights 54, switches 53, and the like are provided on the cab, and these are controlled by the information control device 50.

[0003] An information control device 50 receives signals and information from various parts of the electric vehicle and arranges the information in a central control unit 60.
The organized information is sent to the screen controller 58 and the I / O interface 59. Screen controller 58
Converts the information into display data, and displays
Via the transmission line 52 to be displayed on the screen. The I / O interface 59 converts the information into meters 55,
It is displayed on the indicator lamps 54.

The display 57 of the display device 51 is mainly used for monitor display. The display device 51 is provided with a touch panel 56 so that the driver can input a signal from the screen with touch keys. The input signal is received by the screen controller 58 via the transmission line 52, and is processed by the central control unit 60. When the driver operates a large number of switches 53 on the cab, the central control unit 60 via the I / O interface 59 is operated.
The signal is input to. The central control unit 60 processes these input signals, reflects them on the display, and outputs signals to each part of the electric vehicle.

[0005]

The conventional apparatus shown in FIG. 4 has no significant disadvantages in terms of display or operation, but has the following problems.

The first problem is that the amount of information that can be displayed on one screen at a time is small. In other words, even if a large amount of information is incorporated, the amount of information that can be displayed at one time on a single screen is limited in order to respond to needs that require a large amount of various kinds of information at an appropriate timing. Even if various screens are requested and various screens are requested, it is not possible to display multiple screens at once, so it has the ability to display various screens. You cannot perform actions such as comparing. Capture a large amount of information,
While having a display screen and ability, if it is displayed at an appropriate timing and is not recognized by the driver, the precious information will be useless.

[0007] Also, a large number of meters, indicator lights, and switches are lined up in the cab, but if the number of information to be displayed at a time is increased by increasing the number to display or operate at the same time, it is impossible to do so. Even the narrow cab space is filled with meters, indicator lights and switches, making it even more difficult to understand.

A second problem is that if any one of the display, touch panel, transmission path, and screen controller errors occurs, the conventional system cannot function. That is,
Displays and touch panels have a limited lifespan, and those that are used for a long time every day, such as the cab of an electric car,
We cannot avoid this time coming. Therefore, the possibility of a failure occurring on the hardware due to an abnormality in the transmission path and an abnormality in the screen controller cannot be absolutely reduced to zero.

When any one of these abnormalities occurs, the display on the display becomes unreliable and the function is substantially lost. If an important display or operation is provided only on the display, the operation must be continued without recognizing the display or performing the operation. In this case, important displays and operations cannot be performed only on the display, and it is necessary to install switches, indicator lights, and the like in duplicate.

The present invention has been made in view of the above circumstances, and increases the amount of information that can be displayed simultaneously, and even if an abnormality occurs in any one portion of the transmission system,
An object of the present invention is to provide an electric vehicle driving support device that does not lose the function of the entire system by itself.

[0011]

SUMMARY OF THE INVENTION According to the present invention, as a means for solving the above-mentioned problems, signals transmitted from various parts of an electric vehicle are collected by an information control device, and information relating to electric vehicle operation is installed in a driver's cab. In the electric vehicle driving support device configured to display on the displayed display device and to transmit a signal to each unit of the electric vehicle via the information control device by operating an operation unit provided in the display device, A plurality of display devices having substantially the same configuration are arranged in the same cab, and the display contents of the plurality of display devices are collectively controlled by the information control device.

[0012]

By using a plurality of display devices, for example, three display devices, the area of a screen that can be displayed at a time is tripled. When the area of the screen is tripled, the amount of information becomes three times the amount of information that can be displayed at one time per one screen. Thus, the amount of display information increases.

As the amount of display information increases, it is not necessary to limit the display device to one type of screen display, and a wide variety of screen displays can be performed. Also, it is possible to compare a plurality of screen displays at a time. This allows
Although the screen is occupied only by the display of the normal monitor display, if one screen is used for the monitor display, the remaining two screens are provided with various degrees of freedom such as navigation.

Since the configurations and functions of the display device and the screen controller are exactly the same for all three devices, any screen can be displayed on any display device. By enabling screen switching by input operation from the touch panel on the screen, the information requested by the driver can be displayed on the screen at the required timing and in abundant manner. Signal and information to the driver at appropriate timing.

Conventionally, if any one of the display, touch panel, transmission path, and screen controller errors occurs, the display becomes unreliable and cannot function. The data transmission from the display device, the screen controller, and the information control device to the display device is in a triple system. Even if one control display device has an error, the other two display devices have failed. Since the display can be substituted, the function can be continuously performed as long as no abnormality occurs at the same time for the three units.

Further, conventionally, a large number of switches and switches are displayed by displaying meters and indicator lights on a display device screen, which are often used in a driver's cab, and using key input from a touch panel on the screen. By incorporating the types into the screen of the display device, meters, indicators, and switches can be deleted or eliminated from the cab. Thereby, the space of the driver's cab can be spared.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the configuration of this embodiment. In this figure, an information control device 1 includes a central control unit 2.
And three screen controllers C ₁ , C ₂ and C ₃ . Then, these screen controllers C ₁ , C ₂ ,
_Three display devices 6, 7, and 8 installed on a cab in the cab are connected to C ₃ via transmission lines 3, 4, and 5.

[0018] These three display devices 6, 7, 8, which have the same configuration each other, respectively provided with a display D _1, D _2, D ₃ and the touch panel _{T 1, T 2, T 3} . The switches 53, indicator lights 54, meters 55, and the like provided in FIG. 4 are omitted from the cab of the cab according to this embodiment.

Next, the operation of the embodiment constructed as described above will be described. FIG. 2 is a block diagram showing the functional contents of each component in FIG.

In FIG. 1, signals from various parts of the electric vehicle are input to a central control unit 2, where information arrangement / processing, calculation, conversion, and the like are performed. The output signal of the central control unit 2 is sent to the screen controllers C ₁ , C ₂ and C ₃ , and each screen controller converts the information of these signals into data for screen display. The converted data is transmitted to the corresponding displays D ₁ , D ₂ , D ₃ , and each display performs a screen display based on the transmitted data.

On the other hand, touch panels T ₁ , T ₂ , T ₃ are attached to the screens of the respective displays, and accept operations from a driver, that is, an operator. Then, each of the screen controllers C ₁ , C ₂ , and C ₃ receives operation input data from each touch panel and transfers the operation input data to the central control unit 2. The central control unit 2 manages the entire system based on the operation input data, sends control signals to each part of the electric vehicle, and performs screen management such as which screen is displayed on which display. If the data from the operator's touch panel operation is a request for screen switching, screen switching is performed according to an instruction from the central control unit 2 to each screen controller.

As described above, in this embodiment, since various screens can be freely displayed on the three displays, information obtained from various parts of the electric car can be displayed in a large amount at a time. In this case, various screens such as a monitor, a navigation, and a meter can be displayed on each of the three screens at a time, so that a large amount of information can be provided to the driver.

Also, switches and the like are displayed on the screen together with the meters and indicator lights of the cab, and keys can be operated by a touch panel. Indicator lights and switches can be physically deleted.

The display function of the display, the touch of the touch panel, the transmission between the display device and the screen controller,
Even if an abnormality such as a down of the screen controller occurs, all the three display devices have the same configuration and function, so that each display device performs any screen display only by changing received display data. And the functions such as the display function and the switch input are not impaired.

The central control unit in the above embodiment only needs to provide all screen data necessary for display to the three screen controllers in the same manner, and the processing content of the central control unit becomes relatively simple. Then, since only the data corresponding to the screen currently displayed on the display needs to be transmitted by the screen controller, the amount of data transmitted between the screen controller and the display device is minimized, and the transmission process is performed quickly. Abnormalities and transmission errors are unlikely to occur.
Further, it is very small in probability that an abnormality occurs simultaneously in three streams in the configuration of the present embodiment.

Since the touch panel is a consumable item, it is unavoidable that it will eventually have a long life, but the use of three touch screens should reduce the frequency of use to 1/3 in probability.
The service life should be longer than in the case of one series.
Thereby, the reliability as a switch is increased.

As described above, the probability that the system of this embodiment will not be able to perform its function due to abnormality detection is very small.
Even if the display function is lost, there is no need to worry about operation if a display essential for running the electric vehicle, such as a speed meter, is displayed. And, since all three screen controllers, transmissions, displays, and touch panels can be replaced by the same ones, it is very convenient for maintenance in case of abnormality.

FIG. 3 is a block diagram showing the configuration of another embodiment of the present invention. In this embodiment, the screen controller C
₁ , C ₂ , and C ₃ are provided not on the information control device 9 side but on the display devices 10, 11, and 12 side, respectively.

In the case of this configuration, the amount of data transmitted from the central control unit 2 to the screen controller becomes very large, and the load on the central control unit 2 increases, so that the transmission processing speed decreases and the probability of occurrence of transmission abnormalities increases. There is a possibility that. But,
The display device also has an advantage that control can be easily performed, and the object of the present invention can be achieved similarly to the embodiment of FIG.

In each of the embodiments described above, the case where the number of display devices is three is shown. However, the number of display devices in the present invention may be plural, and is not limited to three.

In the conventional example shown in FIG. 4, the switches 53, the indicator lights 54, and the meters 55 need not always be omitted. In some cases, some of them may be left as they are. Good.

[0032]

As described above, according to the present invention, since a plurality of display devices having the same configuration are installed in the cab, the amount of information that can be displayed simultaneously can be increased. Further, even if an abnormality occurs in any one portion of the transmission system, it is possible to realize an electric vehicle driving support device that does not lose the function of the entire system by itself.

Further, according to the present invention, devices such as meters, indicators, switches, etc., which are conventionally provided in the cab, can be omitted or reduced, so that the cab can be made simpler and flatter. Can also be expected to be effective.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing the functional contents of each component in FIG. 1;

FIG. 3 is a block diagram showing a configuration of another embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a conventional example.

[Explanation of symbols]

1 information control unit 6,7,8 display device C _1, C _2, C ₃ screen controller D _1, D _2, D ₃ displays T _1, T _2, T ₃ touch panel

Claims (1)

(57) [Claims] The present invention collects signals transmitted from various parts of an electric vehicle to display information on electric vehicle operation in a driver's cab, and operates the operation unit provided as a touch panel on a display screen of the display device. An electric vehicle driving support device configured to transmit a signal to each section of the electric vehicle via an information control device, wherein a plurality of display devices connected to one information control device and configured identically to each other are provided. The information control device is disposed in the same cab, and the information control device comprehensively controls display contents of the plurality of display devices based on at least a signal transmitted from each unit of the electric vehicle and a signal by operation of the operation unit. An electric vehicle driving support device characterized by the above-mentioned.