Propulsion control system for motor vehicles
First Claim
1. In a propulsion control system for motor vehicles in the range of the cornering limit speed, having a means for an automatically controlled reduction of the drive torque, having a lateral acceleration sensor means and having a driving parameter sensor means for sensoring a driving parameter selected from steering angle and a driving speed, the improvement comprising:
- means for determining when a predetermined change of driving parameter is not followed by a change of the lateral acceleration, storage means for storing the momentary value of the driving parameter when activated by said determining means,first and second threshold value forming means, connected in parallel to the output of the storage means, for forming a first and second threshold value respectively as a function of the stored value,a first and second comparator means for comparing the momentary value of said driving parameter with the corresponding first and second threshold value, andbistable means, that is set by the output signal of the first comparator means and is reset by the output signal of the second comparator means, for providing a reduction output signal to said means for the reduction of the drive torque.
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Accused Products
Abstract
A propulsion control system for motor vehicles in the range of the cornering limit speed, having a memory in which the momentary steering angle value is stored when a certain steering angle change is not followed by a change of the lateral acceleration, having threshold value comparators in which the actual steering angle is compared with threshold values that depend on the stored steering angle value, and having logic for transmitting and stop transmitting a signal to a control element for the power reduction of the vehicle engine when the actual steering angle exceeds one threshold value and then falls below the other threshold value. The steering angle may also be replaced by the driving speed or by a combination of both quantities.
26 Citations
8 Claims
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1. In a propulsion control system for motor vehicles in the range of the cornering limit speed, having a means for an automatically controlled reduction of the drive torque, having a lateral acceleration sensor means and having a driving parameter sensor means for sensoring a driving parameter selected from steering angle and a driving speed, the improvement comprising:
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means for determining when a predetermined change of driving parameter is not followed by a change of the lateral acceleration, storage means for storing the momentary value of the driving parameter when activated by said determining means, first and second threshold value forming means, connected in parallel to the output of the storage means, for forming a first and second threshold value respectively as a function of the stored value, a first and second comparator means for comparing the momentary value of said driving parameter with the corresponding first and second threshold value, and bistable means, that is set by the output signal of the first comparator means and is reset by the output signal of the second comparator means, for providing a reduction output signal to said means for the reduction of the drive torque. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification