Fault diagnosis system of the vehicle body acceleration sensor, anti-lock braking system

摘要

It is loaded while rolling stock run by the vehicle, the control processing load of on vehicle anchirotsuku brake & the system decrease with the fault diagnosis of the sensor where output changes according to the flow phase of the vehicle and the body accelerating sensor which detects the body acceleration of the especially vehicle makes. Vehicle speed established speed (4m/s) (the timing which is shown with mark T1), memory renewal of maximum Gmax of output value of body accelerating sensor 1, and minimum Gmin was started from the point in time when it is above, it reaches the point where the decision whether or not difference of maximum Gmax and minimum Gmin, in other words, range of fluctuation of output value of body accelerating sensor 1 was established range of fluctuation or more of, is done. And, at the point in time when range of fluctuation of output value of body accelerating sensor 1 is established range of fluctuation or more the output adherence fault detection stop flag of body accelerating sensor 1 from OFF becomes ON, detection of output adherence breakdown of body accelerating sensor 1 becomes unable to do, (the timing which is shown with mark T2).