US 10,399,559 B2 · System and method of controlling engine clutch engagement during TCS operation of hybrid vehicle

Abstract

A system and method of controlling engine clutch engagement during TCS operation of a hybrid vehicle are provided. The method includes determining whether a TCS is operating and upon determining that the TCS is operating, determining a compensation value for early engagement of an engine clutch during the TCS operation based on a difference between a front wheel speed and a rear wheel speed and a slip amount of front wheels. Additionally, the method includes determining whether engagement of the engine clutch is capable of being started based on the compensation value and starting the engine clutch engagement. Since the engagement of the engine clutch is controlled based on the speed of non-drive wheels during TCS operation, the engagement stability of the engine clutch is improved and the amount of time required to engage the engine clutch is decreased.

Claims12

Dependent claims

A method of controlling engine clutch engagement during traction control system (TCS) operation of a hybrid vehicle, comprising:

determining, by a high-level controller of the hybrid vehicle, whether a TCS is operating;
in response to determining that the TCS is operating, determining, by the high-level controller, a compensation value for engine clutch engagement control during the TCS operation based on a difference between a front wheel speed and a rear wheel speed and a slip amount of front wheels;
determining, by the high-level controller, whether engagement of the engine clutch is capable of being started based on the compensation value and starting the engine clutch engagement;
and
engaging, by an engine electronic control unit (ECU), the engine clutch in response to receiving an engine clutch engagement control signal from the high-level controller.

2 more elements

A system of controlling engine clutch engagement during traction control system (TCS) operation of a hybrid vehicle, comprising:

a memory configured to store program instructions;
and
a processor configured to execute the program instructions, the program instructions when executed configured to:
determine whether a TCS is operating;
determine a compensation value for engine clutch engagement control during the TCS operation based on a difference between a front wheel speed and a rear wheel speed and a slip amount of front wheels in response to determining that the TCS is operating;
determine whether engagement of the engine clutch is capable of being started based on the compensation value and starting the engine clutch engagement;
and
engage the engine clutch based on a signal transmitted to an engine electronic control unit (ECU).

5 more elements

Dependencies are inferred from the claim text.

System and method of controlling engine clutch engagement during TCS operation of hybrid vehicle

Life of this patent

System and method of controlling engine clutch engagement during TCS operation of hybrid vehicle

Life of this patent

Abstract

Claims12