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Vehicle behavior controller

A control device and brake device technology, applied in the direction of brakes, etc., can solve the problems of stable control delay and time delay, and achieve the effect of improving behavior stability

Active Publication Date: 2011-06-01
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the braking force is generated on the wheels, it is necessary to activate the hydraulic pump or operate the valve as described above, so there is likely to be a time delay from when the braking force generation command is issued until the braking force is actually generated.
[0004] On the other hand, when the vehicle behavior control device generates braking force on the wheels in order to stabilize the behavior, it is necessary to generate the braking force quickly so that the unstable behavior such as the spin mode or the vehicle that is not accompanied by the driving operation Behavior is stabilized, but if the braking force is delayed, so is the control used to achieve stabilization

Method used

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Examples

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Embodiment 1

[0081] figure 1 is a schematic diagram of a vehicle provided with a vehicle behavior control device according to Embodiment 1 of the present invention. The vehicle 1 including the vehicle behavior control device 2 according to Embodiment 1 uses an internal combustion engine (not shown) as a power source, and the power generated by the power source is transmitted to a plurality of vehicles via a power transmission path such as a transmission (not shown). A wheel 5 of the wheels 5 is provided as a drive wheel. That is, when the vehicle 1 is a front-wheel drive vehicle, the power is transmitted to the front wheels 6, when the vehicle 1 is a rear-wheel drive vehicle, the power is transmitted to the rear wheels 7, and when the vehicle 1 is a four-wheel drive vehicle, the power is transmitted Pass to all wheels 5. Thereby, the driving wheels to which the motive power is transmitted generate a driving force, and the vehicle 1 is provided so as to be able to travel by the driving fo...

Embodiment 2

[0173] The configuration of the vehicle behavior control device 120 according to the second embodiment is substantially the same as that of the vehicle behavior control device 2 according to the first embodiment, but is characterized in that the release condition of the stabilizing brake uses the yaw rate. The other configurations are the same as those in Embodiment 1, so descriptions thereof are omitted, and the same reference numerals are attached. Image 6 is a configuration diagram of main parts of the vehicle behavior control device according to the second embodiment. The vehicle behavior control device 120 according to Embodiment 2 is configured to be able to perform stabilizing braking by the second steering when the steering angle of the second steering when the return steering is performed is maintained. Braking force is generated on the front wheels 6 in the direction opposite to the steering direction, and control of the braking force is maintained while the steerin...

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Abstract

A vehicle behavior controller (2) is provided with a section (98) for determining a steering state by a driver, and a brake control section (88) which generates a predetermined brake force in a front wheel (6) in the direction opposite to the steering direction by a second steering at the time of switchback steering if a determination is made that the steering angle of the second steering has been held when switchback steering is performed, and performs a stabilization control for setting a limit to a drop in a brake force if a determination is made that the steering angle of the second steering has been held. Consequently, a yaw moment can be generated in the direction opposite to the direction of a yaw moment generated by the second steering at the time of switchback steering, and a yaw moment by steering can be reduced. Consequently, a yaw rate can be prevented from becoming too large by a yaw moment which has a tendency to increase at the time of the second steering of switchback steering, and the instable behavior of a vehicle (1) can be prevented. As a result, the stability of behavior can be enhanced at the time of switchback steering.

Description

technical field [0001] The invention relates to a vehicle behavior control device. In particular, the present invention relates to a vehicle behavior control device for controlling the behavior of a vehicle by controlling the braking force generated on wheels. Background technique [0002] Conventionally, some vehicle behavior control devices control the braking force generated on the wheels, and control the braking force of the wheels according to the state of the vehicle regardless of the driver's intention while the vehicle is running, thereby ensuring the stability of the vehicle while running , as such vehicle behavior control, for example, if the control deviation of the yaw speed exceeds a predetermined threshold value during the turning of the vehicle, the yaw speed is reduced by causing the front wheel on the outside of the turn to generate a braking force to stabilize the behavior. [0003] Here, the brake device used when stabilizing the behavior of the vehicle i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/1755
CPCB60T2220/03B60T8/1755
Inventor 渡部良知
Owner TOYOTA JIDOSHA KK
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