Method for determining an actual mass of a vehicle, control system implementing such a method, and vehicle comprising such a control system
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsValér Merza, Daniel Thum, Tamas Komlos
Life of this patent
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Abstract
A method for determining an actual mass of a vehicle, includes: determining a reference relationship of a deceleration of the vehicle having a known mass with respect to a brake demand; executing braking with a predetermined brake demand; detecting an actual deceleration of the vehicle when using the predetermined brake demand; determining an actual relationship of the actual deceleration of the vehicle with respect to the predetermined brake demand; and determining the actual mass of the vehicle by correlating the actual relationship and the reference relationship.
Claims19
A method for determining an actual mass of a vehicle, the method comprising:
- determining a reference relationship of a deceleration of the vehicle having a known mass with respect to a brake demand;
- executing braking with a predetermined brake demand;
- detecting an actual deceleration of the vehicle when using the predetermined brake demand;
- determining an actual relationship of the actual deceleration of the vehicle with respect to the predetermined brake demand;
- determining the actual mass of the vehicle by correlating the actual relationship and the reference relationship;
- and
- controlling the vehicle using the determined actual mass;
- wherein the known mass is a maximum permissible mass of the vehicle.
A method for determining an actual mass of a vehicle, the method comprising:
- determining a reference relationship of a deceleration of the vehicle having a known mass with respect to a brake demand;
- executing braking with a predetermined brake demand;
- detecting an actual deceleration of the vehicle when using the predetermined brake demand;
- determining an actual relationship of the actual deceleration of the vehicle with respect to the predetermined brake demand;
- determining the actual mass of the vehicle by correlating the actual relationship and the reference relationship;
- and
- controlling the vehicle using the determined actual mass;
- wherein a range of the brake demand is determined such that the reference relationship and the actual relationship are respectively linear and expressed by a slope of a straight line in a diagram having an abscissa indicating the brake demand and an ordinate indicating the deceleration, and wherein the actual mass is calculated based on the reference mass, a slope of a straight line expressing the reference relationship, and a slope of a straight line expressing the actual relationship.
A control system for determining an actual mass of a vehicle, comprising:
- a control apparatus configured to perform the following:
- determining a reference relationship of a deceleration of the vehicle having a known mass with respect to a brake demand;
- executing braking with a predetermined brake demand;
- detecting an actual deceleration of the vehicle when using the predetermined brake demand;
- determining an actual relationship of the actual deceleration of the vehicle with respect to the predetermined brake demand;
- determining the actual mass of the vehicle by correlating the actual relationship and the reference relationship;
- and
- controlling the vehicle using the determined actual mass;
- wherein the known mass is a maximum permissible mass of the vehicle.
A vehicle, comprising:
- a control system for determining an actual mass of a vehicle, wherein the control system is configured to perform the following:
- determining a reference relationship of a deceleration of the vehicle having a known mass with respect to a brake demand;
- executing braking with a predetermined brake demand;
- detecting an actual deceleration of the vehicle when using the predetermined brake demand;
- determining an actual relationship of the actual deceleration of the vehicle with respect to the predetermined brake demand;
- determining the actual mass of the vehicle by correlating the actual relationship and the reference relationship;
- and
- controlling the vehicle using the determined actual mass;
- wherein the known mass is a maximum permissible mass of the vehicle.
Dependencies are inferred from the claim text.