JPH037550B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a driving training vehicle that allows the driver to experience driving operations when an automobile slips while turning a curve.

(Prior Art) A slip when a car turns a curve is caused by the centrifugal force acting on the car and the frictional force of the tires, and occurs when the car is driven at high speed. In this case, FR cars tend to oversteer, and FF cars tend to understeer, and novice drivers who can only drive at low speeds cannot experience the countersteering and accelerator control operations needed to correct the car's attitude. This is the current situation.

(Problems to be solved by the invention) For this reason, it is often the first time for drivers to experience a car slipping at high speed, and there is a problem in that it is dangerous to be unable to deal with such situations.

(Means for solving the problem) In order to solve the problem, the present invention provides a driving training vehicle that can reproduce oversteer and understeer behavior similar to that when turning at high speed even when the vehicle is running at low speed. This is a driving training vehicle that is equipped with a front wheel steering device connected to a steering wheel and a rear wheel steering device connected to an actuator, and is equipped with a control panel for controlling the actuator of the rear wheel steering device. , a signal from an accelerator sensor that detects how much the accelerator is depressed and a signal from a G sensor that detects centrifugal force are input into the control panel, and when the accelerator is depressed by a predetermined amount or more and the G sensor detects centrifugal force, In the driving range, the rear wheels are steered from a straight-ahead state, and a selection switch is provided that allows the control mode of the control panel to be selected between at least two modes, first and second, and when the first mode is selected, the The rear wheels are steered in the same direction as the direction of action of centrifugal force in a predetermined driving range, and when the second mode is selected, the rear wheels are steered in the direction opposite to the direction of action of centrifugal force in the drive range. It is characterized by what it did.

(Embodiment) An embodiment of the present invention will be described below based on the drawings. Reference numeral 1 indicates a car body, and the front wheels 2, 2
is provided with a front wheel steering device 4 connected to the handlebar 3, and a rear wheel steering device 7 connected to the actuator 6 is provided in the rear wheels 5, 5.
The actuator 6 is actuated via a drive section 10 controlled by a control panel 11 that receives a signal from an accelerator sensor 8 that detects the amount of accelerator pedal depression and a signal from a G sensor 9 that detects centrifugal force. A selection switch 12 for selecting a control mode is connected to the control panel 11, and the selection switch 12 selects a first mode, FR mode,
The second mode, FF mode, and OFF mode, which stops steering the rear wheels, can be selected.
In the figure, 13 indicates a steering angle sensor, and the sensor 1
3 is for the control panel 11 to know the current position of the rear wheel 5 and decide in which direction it should be moved next.

Next, to explain its operation in the case of FR mode shown in Fig. 2, as shown in Fig. 2, the front wheels 2 and 2 are
When you try to turn to the left by steering the steering wheel 3, a centrifugal force acts on the vehicle body 1 to the right, causing the G sensor 9 to output a signal to the right.At this time, if you strongly press the accelerator, the rear wheels 5, 5 will turn as shown in the figure. As shown in b, the car moves to the right as indicated by the arrow, resulting in strong oversteer behavior.Then, as shown in c, the driver turns the steering wheel 3 to the right, contrary to the curve, in order to restore the car's attitude. You can experience countersteering at this point, and if you release the accelerator or the centrifugal force weakens and the G sensor 9 stops working, the rear wheels 5, 5 return to the straight-ahead state. It is something.

Also, to explain the case of the FF mode in Fig. 3, as shown in Fig. 3 a, the front wheels 2 and 2 are
When you try to turn left by operating the , a centrifugal force is applied to the car body 1 to the right, and when the G sensor 8 outputs a right signal, the rear wheels 5 and 5 move to the left, contrary to the FR mode, resulting in strong understeer. In order to drive this understeered car along the curve as shown in Figure b, the driver further turns the steering wheel 3 to the left, and when he releases the accelerator at this time, the rear wheels 5 and 5 shift as shown in Figure c. returns to the straight-ahead state, and handlebar 3
Because the car has been cut too far, it turns sharply to the left, and at this point you can experience a behavior unique to FF cars called ``Tatsu-in''.

(Effects of the Invention) According to the present invention, even when turning at low speed, by setting the control mode of the control panel 11 to the first mode (FR mode), the rear wheels 5 can be moved in the direction of action of centrifugal force. You can arbitrarily control oversteer behavior by steering in the same direction as , and understeer behavior by steering the rear wheels 5 in the opposite direction to the direction of action of centrifugal force by setting the second mode (FF mode). It can reproduce the oversteer behavior of FR cars during high-speed turns and
It has the effect of allowing users to safely experience countersteering and accelerator operations at low speeds to deal with understeer behavior in front-wheel drive vehicles.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the outline of the present invention, and FIG. 2 is a plan view showing the outline of the present invention.
FIG. 3 is an explanatory diagram showing the FR mode, and FIG. 3 is an explanatory diagram showing the FF mode. 3... Handle, 4... Front wheel steering device, 5...
... Rear wheel, 6 ... Actuator, 7 ... Rear wheel steering device, 8 ... Accelerator sensor, 9 ... G sensor.

Claims (1)

[Claims] 1. A driving training vehicle equipped with a front wheel steering device connected to a steering wheel and a rear wheel steering device connected to an actuator, which is equipped with a control panel that controls the actuator of the rear wheel steering device, and a control panel that controls the actuator of the rear wheel steering device. A signal from an accelerator sensor that detects acceleration and a signal from a G sensor that detects centrifugal force are input, and the rear wheels are driven straight in a predetermined driving range when the accelerator is depressed by a predetermined amount or more and the G sensor detects centrifugal force. In addition, a selection switch is provided that allows the control mode of the control panel to be selected between at least two modes, first and second, and when the first mode is selected, the centrifugal force is Driving training characterized in that the rear wheels are steered in the same direction as the acting direction of the centrifugal force, and when the second mode is selected, the rear wheels are steered in the opposite direction to the acting direction of the centrifugal force in the driving region. car.