PROBLEM TO BE SOLVED: To provide an anti-skid control device which is applied to a vehicle switching between the four-wheel driving and the two-wheel driving according to the execution state of anti-skid control, can properly calculate the vehicle body speed, and suitably execute anti-skid control.SOLUTION: An anti-skid control device executes anti-skid control by selectively switching between the reduction mode of reducing braking torque and the increase mode of increasing the braking torque on the basis of the comparison result between the four wheel speeds and the vehicle body speed. A controller of the anti-skid control device determines the specific state when the vehicle body acceleration is larger than the prescribed vehicle body acceleration, the reduction mode is selected in the driven wheel, and the state where the driven wheel acceleration is within a range of the prescribed wheel acceleration is continuously satisfied over the prescribed time. When the specific state is not determined, the vehicle body speed is calculated on the basis of the maximum value of the four wheel speeds. On the other hand, when the specific state is determined, the vehicle body speed is calculated on the basis of the maximum value of the wheel speed of the driven wheel.SELECTED DRAWING: Figure 3
【課題】 アンチスキッド制御の実行状況に応じて、4輪駆動と2輪駆動とが切り替えられる車両に適用され、車体速度が適切に演算され、アンチスキッド制御が好適に実行され得るものを提供する。【解決手段】 アンチスキッド制御装置は、4つの車輪速度と車体速度との比較結果に基づいて制動トルクを減少する減少モードと制動トルクを増加する増加モードとを選択的に切り替えてアンチスキッド制御を実行する。アンチスキッド制御装置のコントローラでは、車体加速度が所定車体加速度よりも大きく、従動輪で減少モードが選択され、従動輪加速度が所定車輪加速度の範囲内にある状態が所定時間に亘って継続的に満足される場合に特定状態であることが判定される。特定状態が判定されない場合には4つの車輪速度のうちの最大値に基づいて車体速度が演算される。一方、特定状態が判定される場合には従動輪の車輪速度のうちの最大値に基づいて車体速度が演算される。【選択図】 図3
ANTI-SKID CONTROL DEVICE OF VEHICLE
車両のアンチスキッド制御装置
2018-05-17
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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