Invention Grant
- Patent Title: Method for controlling regenerative and hydraulic braking
- Patent Title (中): 控制再生和液压制动的方法
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Application No.: US12813557Application Date: 2010-06-11
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Publication No.: US07922265B1Publication Date: 2011-04-12
- Inventor: Daniel D. Cottrell, V
- Applicant: Daniel D. Cottrell, V
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: B60T13/58
- IPC: B60T13/58

Abstract:
A method for controlling hydraulic and regenerative braking includes commanding variable regenerative braking upon depression of a brake actuator until the regenerative braking reaches a threshold level, and commanding variable hydraulic braking in a wheel circuit. Commanding variable hydraulic braking includes: preventing transfer of fluid pressure from a master cylinder circuit through the ABS valve to the wheel circuit when the fluid in the master cylinder circuit is between a first pressure and a second pressure; partially limiting transfer of fluid pressure from the master cylinder circuit through the ABS valve to the wheel circuit when the fluid in the master cylinder circuit is between the second pressure and a third pressure; and allowing full transfer of fluid pressure from the master cylinder circuit through the ABS valve to the wheel circuit when the fluid in the master cylinder circuit is greater than the third pressure.
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