Roll-over suppressing control apparatus for a vehicle

a control apparatus and vehicle technology, applied in the field of vehicle rollover suppressing control apparatus, can solve the problem of not being able to suppress rollover in sufficient degree, and achieve the effect of suppressing rollover of the vehicle in sufficient degr

Inactive Publication Date: 2005-05-12
MITSUBISHI FUSO TRUCK AND BUS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] It is an object of the present invention to provide a roll-over suppressing control apparatus for a vehicle which can suppress roll-over of the vehicle sufficiently also upon steering back turning wherein the turning direction of the vehicle changes over halfway.
[0013] Further, such a four-wheel ground contacting state as described above occurs when the turning outer wheels to which braking force is to be applied change over from one to the other of the left and right wheels halfway during steering back turning, and while the four wheels remain in contact with the road, braking force is applied to all of the four wheels, whereupon a state transition occurs from a state wherein braking force is applied to one of the left and right wheels to another state wherein braking force is applied to the other of the left and right wheels through an intermediate state wherein braking force is applied to all of the four wheels. Consequently, changeover of the braking wheels from one to the other of the left and right wheels can be performed smoothly. Also in this regard, roll-over can be suppressed sufficiently.

Problems solved by technology

Upon steering back turning wherein the turning direction of a vehicle changes over halfway upon steering back of the steering wheel as in the case of lane change or S-shaped curve traveling, a great reactive movement occurs in the rolling direction of the vehicle, and therefore, only if braking force is applied to turning outer wheels as described above, there is the possibility that roll-over may not be suppressed sufficiently.

Method used

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  • Roll-over suppressing control apparatus for a vehicle
  • Roll-over suppressing control apparatus for a vehicle
  • Roll-over suppressing control apparatus for a vehicle

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Embodiment Construction

[0024] A roll-over suppressing control apparatus for a vehicle according to an embodiment of the present invention is equipped in such a braking system for a vehicle as shown in FIG. 2. Referring to FIG. 2, the braking system for a vehicle includes a brake pedal 1, a master cylinder 2 which operates in an interlocking relationship with an operation of the brake pedal 1, and a hydraulic unit 6 for controlling the brake fluid pressure to be supplied from the master cylinder 2 or a brake fluid reservoir 4 to wheel cylinders of wheel brakes (hereinafter referred to as brakes) 10 for braking wheels (front left and right wheels and rear left and right wheels) 5FL, 5FR, 5RL, 5RR in response to the state of the master cylinder 2 or an instruction from a braking controller (brake ECU) 3. It is to be noted here that a braking mechanism is formed from a liquid pressure adjusting system including the master cylinder 2, hydraulic unit 6 and so forth and the brakes 10 for the braking wheels and s...

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Abstract

The invention provides a roll-over suppressing control apparatus for a vehicle which can suppress roll-over of the vehicle sufficiently also upon steering back turning wherein the turning direction of the vehicle changes over halfway. The roll-over suppressing control apparatus includes a roll-over suppressing control section for controlling, if a roll rate sensor detects that, upon turning of the vehicle, the vehicle is in an excessive rolling state, a braking mechanism so as to apply or increase braking force to a turning outer wheel to perform roll-over suppressing control. If a decision section decides during the roll-over suppressing control that all of the left and right wheels of the vehicle remain in contact with the road, then the roll-over suppressing control section carries out all wheel braking control of controlling the braking mechanism so as to apply the braking force to all of the left and right wheels of the vehicle.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a roll-over suppressing control apparatus for a vehicle which causes, when the vehicle is placed into an excessive rolling state upon turning thereof, braking force to be applied to turning outer wheels to carry out roll-over suppressing control. [0003] 2. Description of the Related Art [0004] As a technique for controlling the posture of a vehicle upon turning, a technique has been develop wherein a rolling state of the vehicle body is detected and, when the rolling of the vehicle body is excessively great, braking force is applied to particular wheels to suppress rolling of the vehicle thereby to suppress roll-over (turning over on its side) of the vehicle (refer to, for example, Japanese Patent Laid-Open No. Hei 11-11272). [0005] According to the technique, when a roll rate (rolling angular velocity) of the vehicle body is detected and the detected roll rate is equal to or higher than a ...

Claims

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Application Information

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IPC IPC(8): B60T8/1755B60R16/02B60T7/12B60T8/00B60T8/172B60T8/24B60T8/58B60T8/60B60W30/00B60W30/04B60W40/10G06F19/00
CPCB60T2230/03B60T8/17554B60T8/24
InventorSAKATA, KUNIO
OwnerMITSUBISHI FUSO TRUCK AND BUS CORPORATION