HILL ROLL-BACK AND ROLL-FORWARD CONTROL SYSTEMS AND METHODS
First Claim
1. A system for a vehicle on a surface, comprising:
- a triggering module that selectively generates a triggering signal when the vehicle is stopped, a grade of the surface is one of greater than a predetermined positive grade and less than a predetermined negative grade, and a brake pedal position is greater than a predetermined brake pedal position,wherein a brake actuator provides brake fluid to a braking system of the vehicle when the brake pedal position is greater than the predetermined brake pedal position;
a brake releasing module that, after the triggering signal is generated, begins releasing the brake fluid from the braking system a predetermined period after the brake pedal position reaches the predetermined brake pedal position; and
a brake applying module that selectively operates a brake fluid pump after the triggering signal is generated based on a comparison of a vehicle speed and a predetermined vehicle speed,wherein the brake fluid pump provides brake fluid to the braking system when the brake fluid pump is operated.
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Accused Products
Abstract
A triggering module selectively generates a triggering signal when a vehicle is stopped, a grade of a surface is one of greater than a predetermined positive grade and less than a predetermined negative grade, and a brake pedal position is greater than a predetermined position. A brake actuator provides brake fluid to a braking system when the brake pedal position is greater than the predetermined position. A brake releasing module, after the triggering signal is generated, begins releasing the brake fluid from the braking system a predetermined period after the brake pedal position reaches the predetermined position. A brake applying module selectively operates a brake fluid pump after the triggering signal is generated based on a comparison of a vehicle speed and a predetermined vehicle speed. The brake fluid pump provides brake fluid to the braking system when the brake fluid pump is operated.
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Citations
20 Claims
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1. A system for a vehicle on a surface, comprising:
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a triggering module that selectively generates a triggering signal when the vehicle is stopped, a grade of the surface is one of greater than a predetermined positive grade and less than a predetermined negative grade, and a brake pedal position is greater than a predetermined brake pedal position, wherein a brake actuator provides brake fluid to a braking system of the vehicle when the brake pedal position is greater than the predetermined brake pedal position; a brake releasing module that, after the triggering signal is generated, begins releasing the brake fluid from the braking system a predetermined period after the brake pedal position reaches the predetermined brake pedal position; and a brake applying module that selectively operates a brake fluid pump after the triggering signal is generated based on a comparison of a vehicle speed and a predetermined vehicle speed, wherein the brake fluid pump provides brake fluid to the braking system when the brake fluid pump is operated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for a vehicle on a surface, comprising:
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a direction triggering module that selectively generates a signal when one of (i) a direction of movement of a vehicle is in a first direction and a desired mode of operation is a second direction that is opposite the first direction and (ii) the direction of movement is in the second direction and the desired mode of operation is in the first direction; and a brake applying module that selectively operates a brake fluid pump after the signal is generated based on a comparison of a vehicle speed and a predetermined vehicle speed, wherein the brake fluid pump pumps brake fluid to a braking system of the vehicle when the brake fluid pump is operated, and wherein a brake actuator provides brake fluid to the braking system based on actuation of a brake pedal.
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12. A method for a vehicle on a surface, comprising:
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selectively generating a triggering signal when the vehicle is stopped, a grade of the surface is one of greater than a predetermined positive grade and less than a predetermined negative grade, and a brake pedal position is greater than a predetermined brake pedal position, wherein a brake actuator provides brake fluid to a braking system of the vehicle when the brake pedal position is greater than the predetermined brake pedal position; after the triggering signal is generated, beginning to release the brake fluid from the braking system a predetermined period after the brake pedal position reaches the predetermined brake pedal position; and selectively operating a brake fluid pump after the triggering signal is generated based on a comparison of a vehicle speed and a predetermined vehicle speed, wherein the brake fluid pump provides brake fluid to the braking system when the brake fluid pump is operated. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification