METHOD FOR DETERMINING STATES OF HYBRID DRIVE TRAIN OF A VEHICLE

• US 20100304921A1
• Filed: 10/16/2008
• Published: 12/02/2010
• Est. Priority Date: 10/24/2007
• Status: Active Grant

• Current Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Wallner, Stefan, Kaltenbach, Johannes
• Granted Patent: US 8,388,492 B2
• Time in Patent Office: Days
• US Class Current: 477/3
• CPC Class Codes: B60K 2006/268 Electric drive motor starts the engine, i.e. used as starter motor
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/19 for achieving enhanced acceleration
• CPC Class Codes: B60W 30/18027 Drive off, accelerating from standstill
• CPC Class Codes: B60W 50/035 Bringing the control units into a predefined state, e.g. giving priority to particular actuators
• CPC Class Codes: B60W 50/045 Monitoring control system parameters
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

A method for determining conditions of a hybrid drive train of a motor vehicle. The method determines, the actual conditions (1, 2, 3, 4, 5, 6, 7, 8) of the drive train from predetermined condition parameters of the actuating device of the hybrid control. The condition parameters include whether or not a flow of force is present between a combustion engine (VM) and an electrical engine (EM), whether or not the combustion engine (VM) is operating, and whether or not a flow of force to the output is present.

Claims

1-7. -7. (canceled)

8. A method of determining conditions of a hybrid drive train of a motor vehicle via an actuating device of a hybrid control for the motor vehicle, the method comprising the steps of:

determining actual conditions (1, 2, 3, 4, 5, 6, 7, 8) of the hybrid drive train through predefined condition parameters of the actuating device of the hybrid control.

9. The method according to claim 8, further comprising the step of using at least one of the following as the condition parameters:

whether or not a flow of force is present between a combustion engine (VM) and an electrical engine (EM),

whether or not the combustion engine (VM) is operating, and

whether or not a flow of force to the output is present.

10. The method according to claim 9, further comprising the step of determining eight actual conditions (1, 2, 3, 4, 5, 6, 7, 8) of the drive train from a logical combination of the condition parameters of the actuating device.

11. The method according to claim 8, further comprising the step of maintaining each actual condition (1, 2, 3, 4, 5, 6, 7, 8) of the drive train, determined by the condition parameter of the actuating device, in dependency with an active operating function.

12. The method according to claim 11, further comprising the step of storing the actual condition (1, 2, 3, 4, 5, 6, 7, 8) of the drive train for a predetermined time interval.

13. The method according to claim 11, further comprising the step of establishing, for each operating function, predetermined conditions.

14. The method according to claim 11, further comprising the step of using the determined condition (1, 2, 3, 4, 5, 6, 7, 8) as one of a start identification and an end identification for an operating processes of the active operating function.

15. The method according to claim 8, further comprising the step of using each of the following as the condition parameters:

whether or not a flow of force is present between a combustion engine (VM) and an electrical engine (EM),

whether or not the combustion engine (VM) is operating, and

whether or not a flow of force to the output is present.