Motor vehicle propulsion control when accelerating from a stationary position
First Claim
1. System for controlling the propulsion on motor vehicles to prevent the undesirable spinning of the driven vehicle wheels, having at least one threshold value indicator associated with each driven vehicle wheel and monitoring the slip or acceleration of the respective wheel, having means to determine vehicle longitudinal acceleration, and having a control means activated by the output signals of said threshold value indicator for reducing the drive torque by an intervention in one or more of the following ignition, carburetor, fuel injection, and brakes, comprising:
- first storage means for determining and storing engine speed at moment of intervention; and
means for initiating an intervention of one or more of the following;
interrupting the ignition or reducing the fuel supply as soon as the vehicle longitudinal acceleration does not increase while the engine speed is rising, and maintains said intervention until a preset period has expired or until the engine speed reaches or falls below said value stored in said first storage means at the moment of intervention.
1 Assignment
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Accused Products
Abstract
In a system for controlling the propulsion on motor vehicles, by a reduction of the drive torque by an intervention in ignition, carburator or fuel injection and/or brakes, includes a first device which reduces the drive torque when the maximum adhesion coefficient is exceeded, and a second device which reduces the drive torque to a value associated with the measured maximum value of the vehicle acceleration when the monitored wheel variable exceeds the threshold value, as a result of which too great an excess of torque is prevented and sufficient traction and cornering stability are retained without unnecessarily slowing down a propulsion of the motor vehicle.
18 Citations
10 Claims
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1. System for controlling the propulsion on motor vehicles to prevent the undesirable spinning of the driven vehicle wheels, having at least one threshold value indicator associated with each driven vehicle wheel and monitoring the slip or acceleration of the respective wheel, having means to determine vehicle longitudinal acceleration, and having a control means activated by the output signals of said threshold value indicator for reducing the drive torque by an intervention in one or more of the following ignition, carburetor, fuel injection, and brakes, comprising:
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first storage means for determining and storing engine speed at moment of intervention; and means for initiating an intervention of one or more of the following;
interrupting the ignition or reducing the fuel supply as soon as the vehicle longitudinal acceleration does not increase while the engine speed is rising, and maintains said intervention until a preset period has expired or until the engine speed reaches or falls below said value stored in said first storage means at the moment of intervention. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification