Method for detecting faults in an electronically controlled drive system of a motor vehicle
First Claim
1. A method for detecting faults in an electronically controlled drive system of a motor vehicle, the method comprising the acts of:
- determining an accelerator pedal position of the motor vehicle;
determining a longitudinal acceleration of the motor vehicle;
supplying the accelerator pedal position and the longitudinal acceleration of the motor vehicle as input signals to an electronic control unit; and
performing a first fault detection program by the electronic control unit, independent of an actual functional scope of the electronic control unit, by detecting a fault when a defined acceleration gradient, which is dependent on an accelerator pedal position change, is exceeded for longer than a predefined time period.
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Abstract
A method is provided for detecting faults in an electronically controlled drive system of a motor vehicle by way of an electronic control unit. The electronic control unit detects at least the accelerator pedal position and the longitudinal acceleration of the motor vehicle as input signals. The control unit is configured to carry out a first fault detection program independently of its actual functional scope, by which program, a fault is detected if a defined acceleration gradient, which is dependent on a change in the accelerator pedal position, is exceeded for longer than for a predefined time period.
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Citations
7 Claims
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1. A method for detecting faults in an electronically controlled drive system of a motor vehicle, the method comprising the acts of:
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determining an accelerator pedal position of the motor vehicle; determining a longitudinal acceleration of the motor vehicle; supplying the accelerator pedal position and the longitudinal acceleration of the motor vehicle as input signals to an electronic control unit; and performing a first fault detection program by the electronic control unit, independent of an actual functional scope of the electronic control unit, by detecting a fault when a defined acceleration gradient, which is dependent on an accelerator pedal position change, is exceeded for longer than a predefined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification