Control method of hybrid vehicle

• US 9,114,724 B2
• Filed: 06/28/2012
• Issued: 08/25/2015
• Est. Priority Date: 11/29/2011
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Yang, Byunghoon, Ihm, Hyung Bin, Chung, Tae Young, Park, Jooyoung
• Primary Examiner(s): Ip, Paul
• Assistant Examiner(s): Bouziane, Said
• Application Number:
  US13/536,261
• Publication Number:
  US 20130134915A1
• Time in Patent Office: 1,153 Days
• Field of Search: 318/400.02, 318/400.14, 318/400.15, 318/722, 318/727, 318/807, 318/685, 318/432
• US Class Current: 1/1
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: H02P 21/50 Vector control arrangements or methods not otherwise provided for in H02P21/00- H02P21/36
• CPC Class Codes: H02P 29/02 Providing protection against overload without automatic interruption of supply protection against faults of stepper motors H02P8/36
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility

Abstract

A control method of a vehicle having a motor according to an exemplary embodiment of the present invention can include confirming that a speed of the motor is not 0 and an output torque thereof is 0 in a condition that the vehicle is being operated, confirming that a voltage of the motor converges to a regular value, and accumulating control data for the motor and processing the control data to calculate an offset value of a resolver. Accordingly, the control method of a vehicle effectively determines whether the offset of the resolver is to be compensated without affecting the drivability of the vehicle.

Claims

1. A control method of a vehicle having a motor, comprising:

confirming that a speed of the motor is not 0 and an output torque thereof is 0 in a condition that the vehicle is being operated;

confirming that a voltage of the motor converges to a regular value; and

accumulating control data for the motor and processing the control data by a resolver offset determiner to calculate an offset value of a resolver,

wherein while a current of the motor converges to a predetermined value, an axis D voltage and an axis Q voltage of the motor converge to a predetermined range, and

a point that the output torque of the motor is 0 is extended to within a predetermined speed range of the motor, such that the control data for the motor is accumulated in the predetermined speed range in order to calculate the offset value of the resolver.

2. The control method of claim 1, wherein an offset mode is performed in a condition that the speed of the vehicle is not 0.

3. The control method of claim 1, wherein the predetermined speed range is between 1,000 RPM and 2,000 RPM.

4. A non-transitory computer-readable medium containing program instructions executed by a processor or controller to implement a control method of a vehicle having a motor, the computer-readable medium comprising:

program instructions executed by the controller that confirm that a speed of the motor is not 0 and an output torque thereof is 0 in a condition that the vehicle is being operated;

program instructions executed by the controller that confirm that a voltage of the motor converges to a regular value; and

program instructions that accumulate control data for the motor and processing the data by a resolver offset determiner to calculate an offset value of a resolver,

wherein while a current of the motor converges to a predetermined value, an axis D voltage and an axis Q voltage of the motor converge to a predetermined range, and

a point that the output torque of the motor is 0 is extended to within a predetermined speed range of the motor, such that the control data for the motor is accumulated in the predetermined speed range in order to calculate the offset value of the resolver.