Brake control apparatus
First Claim
1. A brake control apparatus comprising:
- a brake pressure controlling unit including normally-open-type electromagnetic valves for preventing a fluid pressure transmitted from a master cylinder to wheel brakes when the valves close; and
a control unit executing an anti-lock brake control resolving a lock tendency of the wheels by controlling the operation of the brake pressure controlling unit according to a result of judgment of the lock tendency of wheels, and simultaneously executing a brake force distribution control distributing front and rear brake forces by controlling the normally-open-type electromagnetic valves in correspondence with rear wheels to close in such a manner that the normally-open-type electromagnetic valves are opened when the brake force distribution control is finished;
wherein the control unit finishes the brake force distribution control as a vehicle stops and after a frontward force applied to the vehicle is released and prior to a stop of the vehicle,wherein the control unit finishes the brake force distribution control after a predetermined time elapsed from when a wheel speed is reduced to be equal to or smaller than a predetermined wheel speed just before the vehicle stops, andwherein the predetermined time is 300 msec and the predetermined wheel speed is 2 km/h.
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Accused Products
Abstract
A brake control apparatus having a brake pressure controlling unit including normally-open-type electromagnetic valves for preventing a fluid pressure transmitted from a master cylinder to wheel brakes when the valves close and a control unit executing an anti-lock brake control resolving a lock tendency of the wheels by controlling the operation of the brake pressure controlling unit according to a result of judgment of the lock tendency of wheels, and simultaneously executing a brake force distribution control distributing front and rear brake forces by controlling the normally-open-type electromagnetic valves in correspondence with rear wheels to close in such a manner that the normally-open-type electromagnetic valves are opened when the brake force distribution control is finished, wherein the control unit finishes the brake force distribution control after a vehicle stops and a load applied ahead of the vehicle is released.
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Citations
5 Claims
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1. A brake control apparatus comprising:
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a brake pressure controlling unit including normally-open-type electromagnetic valves for preventing a fluid pressure transmitted from a master cylinder to wheel brakes when the valves close; and a control unit executing an anti-lock brake control resolving a lock tendency of the wheels by controlling the operation of the brake pressure controlling unit according to a result of judgment of the lock tendency of wheels, and simultaneously executing a brake force distribution control distributing front and rear brake forces by controlling the normally-open-type electromagnetic valves in correspondence with rear wheels to close in such a manner that the normally-open-type electromagnetic valves are opened when the brake force distribution control is finished; wherein the control unit finishes the brake force distribution control as a vehicle stops and after a frontward force applied to the vehicle is released and prior to a stop of the vehicle, wherein the control unit finishes the brake force distribution control after a predetermined time elapsed from when a wheel speed is reduced to be equal to or smaller than a predetermined wheel speed just before the vehicle stops, and wherein the predetermined time is 300 msec and the predetermined wheel speed is 2 km/h. - View Dependent Claims (2, 3, 4)
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5. A brake control apparatus comprising:
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a brake pressure controlling unit including normally-open-type electromagnetic valves for preventing a fluid pressure transmitted from a master cylinder to wheel brakes when the valves close; and a control unit executing an anti-lock brake control resolving a lock tendency of the wheels by controlling the operation of the brake pressure controlling unit according to a result of judgment of the lock tendency of wheels, and simultaneously executing a brake force distribution control distributing front and rear brake forces by controlling the normally-open-type electromagnetic valves in correspondence with rear wheels to close in such a manner that the normally-open-type electromagnetic valves are opened when the brake force distribution control is finished; wherein the control unit finishes the brake force distribution control as a vehicle stops and after a frontward force applied to the vehicle is released and prior to a stop of the vehicle, wherein the control unit finishes the brake force distribution control after an estimated deceleration is reduced to be equal to or smaller than a predetermined deceleration from when a wheel speed is reduced to be equal to or smaller than a predetermined wheel speed just before the vehicle stops, and wherein the predetermined wheel speed is 2 km/h.
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Specification