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US 12,617,386 B2Granted
Control system for controlling a retardation of a vehicle
AssigneeVolvo Truck Corporation
InventorsJosé Vilca, Esteban Gelso, Leo Laine, Mikael Askerdal, Mats Jonasson, Sachin Janardhanan
Life of this patent
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Abstract
A control system for controlling a retardation of a vehicle. The control system is adapted to use power loss information for each motion support device controlling the retardation of the vehicle. For each one of the motion support devices, the power loss information is such that, for each one of a plurality of operating points, the power loss information comprises a power loss value indicative of a power loss of the motion support device when operated at the operating point, each operating point being related to at least a load produced by the motion support device.
Claims16
A control system for controlling a retardation of a vehicle;
- the vehicle comprising a set of motion support devices for controlling the retardation of the vehicle, at least a first motion support device in the set of motion support devices being an electric motor and at least a second motion support device in the set of motion support devices being a service brake, the vehicle comprising a set of wheels whereby each motion support device in the set of motion support devices being drivingly connected, directly or indirectly, to one or more of the wheels;
- the control system being adapted to use power loss information for each motion support device in the set of motion support devices;
- wherein, for each one of the motion support devices, the power loss information is such that, for each one of a plurality of operating points, the power loss information comprises a power loss value indicative of a power loss of the motion support device when operated at the operating point, each operating point being related to at least a load produced by the motion support device;
- the control system being adapted to:
- receive a vehicle retardation request indicative of a requested retardation of the vehicle;
- use the power loss information for each motion support device in the set of motion support devices in order to determine a brake load to be supplied by each motion support device in the set of motion support devices such that the aggregated brake load supplied by the set of motion support devices results in a retardation of the vehicle corresponding to the vehicle retardation request;
- and
- issue information to the set of motion support devices indicative of the brake load to be supplied by each motion support device in the set of set of motion support devices.
5 more elements
A method for controlling a retardation of a vehicle:
- the vehicle comprising a set of motion support devices for controlling the retardation of the vehicle, at least a first motion support device in the set of motion support devices being an electric motor and at least a second motion support device in the set of motion support devices being a service brake, the vehicle comprising a set of wheels whereby each motion support device in the set of motion support devices being drivingly connected, directly or indirectly, to one or more of the wheels;
- the method comprising using power loss information for each motion support device in the set of motion support devices;
- wherein, for each one of the motion support devices, the power loss information is such that, for each one of a plurality of operating points, the power loss information comprises a power loss value indicative of a power loss of the motion support device when operated at the operating point, each operating point being related to at least a load produced by the motion support device;
- the method comprising:
- receiving a vehicle retardation request indicative of a requested retardation of the vehicle;
- using the power loss information for each motion support device in the set of motion support devices in order to determine a brake load to be supplied by each motion support device in the set of motion support devices such that the aggregated brake load supplied by the set of motion support devices results in a retardation of the vehicle corresponding to the vehicle retardation request;
- and
- issuing information to the set of motion support devices indicative of the brake load to be supplied by each motion support device in the set of set of motion support devices.
5 more elements
Dependencies are inferred from the claim text.