Safety system for a motor vehicle
First Claim
1. Safety system for a motor vehicle having an internal-combustion engine, comprising:
- a sensor for measuring accelerator pedal position;
a sensor for determining at least one operating parameter indicative of an operating condition of the internal-combustion engine;
a sensor for measuring at least one quantity indicative of vehicle propulsion;
a first analyzing device fordetermining a desired vehicle propulsion value and a desired value for the at least one operating parameter based on the accelerator pedal position, which characterizes the operating condition of the internal-combustion engine;
determining an actual vehicle propulsion value based on the at least one quantity characterizing the vehicle propulsion; and
adjusting the at least one operating parameter indicative of operating condition of the internal-combustion engine to adapt it to the determined desired value; and
a second analyzing device for continuously comparing the desired vehicle propulsion value and the actual vehicle propulsion value provided by the first analyzing device, and recognizing a fault when the actual propulsion value deviates from the desired propulsion value.
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0 Petitions
Accused Products
Abstract
The invention relates to a safety system for a motor vehicle having an internal-combustion engine. Independent quantities are used for engine control and for monitoring the engine control. Control of the internal-combustion engine is performed, for example, by way of an operating parameter characterizing the engine load, while monitoring of the engine control is performed by means of the output torque. Preferably, monitoring of the engine control is integrated into a traction control system, in which case desired and actual values for a quantity characterizing the vehicle propulsion, such as the output torque, are transmitted by the engine control to the monitoring system and are compared there for recognizing a fault. If a fault is recognized in the traction control system, a signal is transmitted back to the engine control unit, to influence the engine control.
12 Citations
9 Claims
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1. Safety system for a motor vehicle having an internal-combustion engine, comprising:
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a sensor for measuring accelerator pedal position; a sensor for determining at least one operating parameter indicative of an operating condition of the internal-combustion engine; a sensor for measuring at least one quantity indicative of vehicle propulsion; a first analyzing device for determining a desired vehicle propulsion value and a desired value for the at least one operating parameter based on the accelerator pedal position, which characterizes the operating condition of the internal-combustion engine; determining an actual vehicle propulsion value based on the at least one quantity characterizing the vehicle propulsion; and adjusting the at least one operating parameter indicative of operating condition of the internal-combustion engine to adapt it to the determined desired value; and a second analyzing device for continuously comparing the desired vehicle propulsion value and the actual vehicle propulsion value provided by the first analyzing device, and recognizing a fault when the actual propulsion value deviates from the desired propulsion value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification