Method and system for operating a motor vehicle brake system
First Claim
1. A method for operating a brake system of a motor vehicle having front and rear axles with respective front and rear axle braking mechanisms, the method carried out in a controller of the brake system, the controller having memory with stored instructions to carry out the steps of:
- receiving a signal indicative of initiation of a braking process;
receiving a signal indicative of a current speed of travel;
determining an initial brake pressure for the rear axle braking mechanism;
determining a target brake pressure for the rear axle braking mechanism that is representative of an increase in pressure relative to the initial brake pressure and an increase in pressure that increases in response to a reducing current speed of travel; and
subjecting the rear axle braking mechanism to the target brake pressure.
1 Assignment
0 Petitions
Accused Products
Abstract
A brake system for a motor vehicle having front and rear axles, the brake system having front and rear axle braking mechanisms operated under pressure control devices for producing a respective brake pressure on the front and rear axles of the motor vehicle. A controller receives signal information from sensors and systems on the motor vehicle to detect initiation of a braking process and detect a current speed of travel of the motor vehicle. An initial brake pressure for the rear axle braking mechanism is determined by the controller. A target brake pressure for the rear axle braking mechanism is determined by the controller and is representative of an increase in pressure relative to the initial brake pressure and the current speed of travel. Instructions from the controller operate the pressure control devices to produce the target brake pressure at the rear axle braking mechanism.
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Citations
23 Claims
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1. A method for operating a brake system of a motor vehicle having front and rear axles with respective front and rear axle braking mechanisms, the method carried out in a controller of the brake system, the controller having memory with stored instructions to carry out the steps of:
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receiving a signal indicative of initiation of a braking process; receiving a signal indicative of a current speed of travel; determining an initial brake pressure for the rear axle braking mechanism; determining a target brake pressure for the rear axle braking mechanism that is representative of an increase in pressure relative to the initial brake pressure and an increase in pressure that increases in response to a reducing current speed of travel; and subjecting the rear axle braking mechanism to the target brake pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A brake system for a motor vehicle having front and rear axles, the brake system comprising:
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front and rear axle braking mechanisms operated under pressure control devices for producing a respective brake pressure on the front and rear axles of the motor vehicle; a controller to receive signal information from sensors and systems on the motor vehicle, to detect initiation of a braking process, and to detect a current speed of travel of the motor vehicle; a signal received at the controller indicative of initiation of the braking process; a signal received at the controller indicative of the current speed of travel; an initial brake pressure for the rear axle braking mechanism as determined by the controller; a target brake pressure for the rear axle braking mechanism that is determined by the controller to be representative of an increase in pressure relative to the initial brake pressure that increases in response to a reduction in the current speed of travel; and instructions from a memory of the controller to operate the pressure control devices to produce the target brake pressure at the rear axle braking mechanism. - View Dependent Claims (15, 16, 18, 19, 20, 21, 22, 23)
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17. The system as claimed in 16 further comprising a target brake pressure for the front axle braking mechanism that is determined by the controller in order to achieve the target deceleration.
Specification