Title:
車体加速度センサの故障診断装置、アンチロック・ブレーキ・システム
Document Type and Number:
Japanese Patent JP4709008
Kind Code:
B2
Abstract:
The present invention reduces a control processing load of a vehicle-use antilock brake system attributed to a trouble diagnosis of a sensor which is mounted on a vehicle and has an output thereof changed corresponding to a traveling state of the vehicle during traveling of the vehicle, particularly a vehicle body acceleration sensor which detects the vehicle body acceleration of the vehicle. From a point of time that a vehicle speed becomes a preset speed ³ (4m/s) or more (timing indicated by symbol T1), the storing and the updating of a maximum value Gmax and a minimum value Gmin of an output value of the vehicle body acceleration sensor 1 are started and it is determined whether the difference between the maximum value Gmax and the minimum value Gmin, that is, a fluctuation width of the output value of the vehicle body acceleration sensor 1 becomes a preset fluctuation width ´ or more or not. Then, at a point of time that the fluctuation width of the output value of the vehicle body acceleration sensor 1 becomes the preset fluctuation width ´ or more, an output fixing trouble detection stop flag of the vehicle body acceleration sensor 1 is changed over from OFF to ON and hence, the detection of the output fixing trouble of the vehicle body acceleration sensor 1 is not performed (timing indicated by symbol T2).
Inventors:
Takayuki Okai
Application Number:
JP2005516692A
Publication Date:
June 22, 2011
Filing Date:
December 27, 2004
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
G01P21/00; B60T8/1761; B60T8/88
Domestic Patent References:
| JPH04110239A | 1992-04-10 | |||
| JPH0764601A | 1995-03-10 | |||
| JPH0648224A | 1994-02-22 | |||
| JP2002200952A | 2002-07-16 | |||
| JP2003063375A | 2003-03-05 | |||
| JP2002022766A | 2002-01-23 |
Attorney, Agent or Firm:
Hiroki Ishii