METHOD FOR DETERMINING AN ESTIMATE OF THE MASS OF A MOTOR VEHICLE
First Claim
1. A method to determine an estimate of a mass of a motor vehicle for use in controlling a brake system of the motor vehicle, the method comprising:
- determining a driving force and a force of inertia acting instantaneously on a wheel being determined for all wheels of the vehicle;
determining at least one of a rolling resistance of the motor vehicle and a braking force acting instantaneously on the wheel for all wheels of the motor vehicle; and
adding up the instantaneous driving forces and the forces of inertia of all wheels plus an instantaneous wind resistance of the vehicle to provide a summation result, and dividing the summation result by an instantaneous longitudinal acceleration to determine the estimate of the mass, wherein the at least one of the rolling resistance of the motor vehicle and the braking force acting instantaneously on the wheel determined for all wheels of the motor vehicle are taken into account in the summation.
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Accused Products
Abstract
A method for determining an estimate of the mass of a motor vehicle for use in controlling the brake system of a motor vehicle, in which a driving force and a force of inertia acting instantaneously on the wheel being determined for all the wheels of the vehicle, and the instantaneous driving forces and inertia forces of all wheels as well as an instantaneous wind resistance of the motor vehicle are added up and divided by the instantaneous longitudinal acceleration of the vehicle to determine the estimate of the mass. In addition, the rolling resistance of the vehicle and/or a braking force acting instantaneously on the wheel is determined for all the wheels and taken into account in the addition.
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Citations
9 Claims
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1. A method to determine an estimate of a mass of a motor vehicle for use in controlling a brake system of the motor vehicle, the method comprising:
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determining a driving force and a force of inertia acting instantaneously on a wheel being determined for all wheels of the vehicle;
determining at least one of a rolling resistance of the motor vehicle and a braking force acting instantaneously on the wheel for all wheels of the motor vehicle; and
adding up the instantaneous driving forces and the forces of inertia of all wheels plus an instantaneous wind resistance of the vehicle to provide a summation result, and dividing the summation result by an instantaneous longitudinal acceleration to determine the estimate of the mass, wherein the at least one of the rolling resistance of the motor vehicle and the braking force acting instantaneously on the wheel determined for all wheels of the motor vehicle are taken into account in the summation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification