Invention Grant
- Patent Title: Engine off brake booster leak diagnostic systems and methods
- Patent Title (中): 发动机关闭制动助力器泄漏诊断系统和方法
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Application No.: US11645354Application Date: 2006-12-22
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Publication No.: US07878053B2Publication Date: 2011-02-01
- Inventor: Chad W. Lehner , William L. Aldrich, III
- Applicant: Chad W. Lehner , William L. Aldrich, III
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Main IPC: G01M17/00
- IPC: G01M17/00
Abstract:
A control system for evaluating a brake booster system is provided. The control system includes an engine evaluation module that detects an engine off condition. A pressure evaluation module monitors hydraulic brake line pressure and detects changes in brake booster pressure during the engine off condition. A fault reporting module selectively detects a brake booster fault based on the brake line pressure and the changes in brake booster pressure.
Public/Granted literature
- US20080154454A1 Engine off brake booster leak diagnostic systems and methods Public/Granted day:2008-06-26
Information query
