US 2014/0195079 A1 · METHOD AND DEVICE FOR CONTROLLING THE DRIVE TRAIN OF AN ELECTRIC VEHICLE

Abstract

A method for controlling an electric vehicle drivetrain having least two drive units with wheels located on opposite axles are driven by respective drive units, includes in a first operating mode, the ratio of the torques provided by the drive units in each case for a given torque requirement is set taking into account the efficiency applicable to each drive unit under the given operating conditions, and in a second operating mode, the ratio of the torques provided by the drive units in each case for a given torque requirement is set independently of the efficiency applicable to each drive unit under the given operating conditions.

Claims6

Dependent claims

A method for controlling a drive train of an electric vehicle, wherein the drive train comprises at least two drive units and wherein at least two wheels arranged on different axles of the electric vehicle can be driven via different drive units, comprising:

in a first operating mode, a ratio of torques provided by the drive units in each case for a given torque requirement is set upon to taking into account efficiency applicable to each drive unit under current operating conditions;
and
in a second operating mode, the ratio of torques provided by the drive units in each case for a given torque requirement is set independently of efficiency applicable to each drive unit under the current operating conditions.

Dependencies are inferred from the claim text.

Facts

Application

13/736,103Filed 8 Jan 2013

Published

10 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

B60L 15/2054
For control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed: by…
B60L 15/2045
For control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed: for…
B60L 50/61
Using power supplied by batteries: by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
B60L 2220/42
Electrical machine applications: with use of more than one motor

Method and device for controlling the drive train of an electric vehicle

Life of this patent

Method and device for controlling the drive train of an electric vehicle

Life of this patent

Abstract

Claims6