Acceleration-Based Safety Monitoring of a Drive of a Motor Vehicle
First Claim
1. A method for safety monitoring of a drive in a motor vehicle, comprising the acts of:
- determining a setpoint torque as a function of at least one of a characteristic accelerator pedal signal for a position of an accelerator pedal and a signal of a driver assistance system influencing a vehicle-longitudinal movement;
determining an expected vehicle acceleration as a function of the setpoint torque;
determining an actual vehicle acceleration; and
detecting a fault situation by comparing the actual vehicle acceleration and the expected vehicle acceleration.
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Accused Products
Abstract
An acceleration-based method and device for the safety monitoring of a drive is provided. In the method a setpoint torque is calculated in a safety function as a function of the position of the accelerator pedal. An expected vehicle acceleration is determined, as a function of the setpoint torque, in the safety function. An actual vehicle acceleration is determined, preferably by an acceleration sensor. A fault situation may be detected by comparing the actual vehicle acceleration and the expected vehicle acceleration. A device, preferably included in the vehicle electronics, is configured to implement the acceleration-based method.
19 Citations
13 Claims
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1. A method for safety monitoring of a drive in a motor vehicle, comprising the acts of:
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determining a setpoint torque as a function of at least one of a characteristic accelerator pedal signal for a position of an accelerator pedal and a signal of a driver assistance system influencing a vehicle-longitudinal movement; determining an expected vehicle acceleration as a function of the setpoint torque; determining an actual vehicle acceleration; and detecting a fault situation by comparing the actual vehicle acceleration and the expected vehicle acceleration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for safety monitoring of a drive in a motor vehicle, comprising:
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means for determining a setpoint torque as a function of at least one of a characteristic accelerator pedal signal for the position of the accelerator pedal and a signal of a driver assistance system influencing the vehicle-longitudinal movement; means for determining an expected vehicle acceleration as a function of the setpoint torque; means for determining an actual vehicle acceleration; and means for detecting a fault situation by comparing the actual vehicle acceleration and the expected vehicle acceleration.
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13. A device for safety monitoring of a drive in a motor vehicle, comprising:
a control module, the control module being configured to; determine a setpoint torque as a function of at least one of a characteristic accelerator pedal signal for a position of an accelerator pedal and a signal of a driver assistance system influencing a vehicle-longitudinal movement; determine an expected vehicle acceleration as a function of the setpoint torque; determine an actual vehicle acceleration; and detect a fault situation by comparing the actual vehicle acceleration and the expected vehicle acceleration.
Specification