Hybrid type vehicle drive control apparatus, hybrid type vehicle drive control method, and program thereof

• US 6,757,598 B2
• Filed: 07/30/2002
• Issued: 06/29/2004
• Est. Priority Date: 08/01/2001
• Status: Expired due to Term

• Current Assignee: Aisin AW Company Limited (Aisin Corp.)
• Original Assignee: Aisin AW Company Limited (Aisin Corp.)
• Inventors: Okoshi, Toshio
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Gibson, Eric M
• Application Number:
  US10/207,085
• Publication Number:
  US 20030033060A1
• Time in Patent Office: 700 Days
• Field of Search: 701/22, 180/65.1, 180/65.2, 180/65.3, 180/65.4, 180/65.8, 320/137
• US Class Current: 701/22
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/445 Differential gearing distribution type
• 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: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 3/0038 relating to sensors
• CPC Class Codes: B60L 3/0092 with use of redundant elements for safety purposes
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• 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 10/24 including control of energy storage means
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• 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 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 2510/242 for electrical energy
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2710/242 for electrical energy
• CPC Class Codes: F16H 2037/0866 Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y10S 903/904 : Component specially adapted for hev
• CPC Class Codes: Y10S 903/91 : Orbital, e.g. planetary gears

Abstract

A hybrid type vehicle drive control apparatus having a generator; a generator inverter for driving the generator; a drive motor; a drive motor inverter for driving the drive motor; a battery connected to the generator inverter and the drive motor inverter; a first voltage detection device that detects a voltage applied to the generator inverter; a second voltage detection device that detects a voltage applied to the drive motor inverter; a third voltage detection device that detects a battery voltage; and a system voltage determination processing means for determining a system voltage based on detection results provided by the first to third voltage detection devices.

Claims

1. A hybrid type vehicle drive control apparatus, comprising:

an electric generator that generates electric power by driving an engine;

an electric generator inverter that drives the electric generator;

a drive motor that drives a hybrid type vehicle;

a drive motor inverter that drives the drive motor;

a battery connected to the electric generator inverter and the drive motor inverter;

a first voltage detection device that detects a voltage applied to the electric generator inverter;

a second voltage detection device that detects a voltage applied to the drive motor inverter;

a third voltage detection device that detects a battery voltage; and

a system voltage determination processing device that determines a system voltage based on detection results provided by normal voltages of the first to third voltage detection devices if a detection abnormality occurs in any one of the first to third voltage detection devices.

2. The hybrid type vehicle drive control apparatus according to claim 1, wherein the system voltage determination processing device determines the system voltage based on a difference between two detection results of the detection results provided by the first to third voltage detection devices.

3. The hybrid type vehicle drive control apparatus according to claim 2, further comprising a planetary gear unit having at least first to third gear elements, wherein the first gear element is mechanically connected to the electric generator, and the second gear element is mechanically connected to the drive motor, and the third gear element is mechanically connected to the engine.

4. The hybrid type vehicle drive control apparatus according to claim 1, wherein the system voltage determination processing device determines the system voltage based on the detection result provided by each of the first to third voltage detection devices.

5. The hybrid type vehicle drive control apparatus according to claim 4, wherein the system voltage determination processing device determines the system voltage based on detection results provided by two of the first to third voltage detection devices, and a detection result provided by another one of the first to third voltage detection devices.

6. The hybrid type vehicle drive control apparatus according to claim 5, further comprising a planetary gear unit having at least first to third gear elements, the first gear element is mechanically connected to the electric generator, and the second gear element is mechanically connected to the drive motor, and the third gear element is mechanically connected to the engine.

7. The hybrid type vehicle drive control apparatus according to claim 4, further comprising a planetary gear unit having at least first to third gear elements, wherein the first gear element is mechanically connected to the electric generator, and the second gear element is mechanically connected to the drive motor, and the third gear element is mechanically connected to the engine.

8. The hybrid type vehicle drive control apparatus according to claim 1, further comprising a planetary gear unit having at least first to third gear elements, wherein the first gear element is mechanically connected to the electric generator, and the second gear element is mechanically connected to the drive motor, and the third gear element is mechanically connected to the engine.

9. The hybrid type vehicle drive control apparatus according to claim 1, wherein the system voltage determination processing device determines the normal voltages based on a difference between two detection results of the detection results provided by the first to third voltage detection devices and a difference between one of the two detection results and another detection result of the detection results provided by the first to third voltage detection devices.

10. A method for controlling a hybrid type vehicle drive apparatus having an electric generator that generates electric power by driving an engine, an electric generator inverter that drives the electric generator, a drive motor that drives a hybrid type vehicle, a drive motor inverter that drives the drive motor, and a battery connected to the electric generator inverter and the drive motor inverter, the method comprising:

detecting a voltage applied to the electric generator inverter by a first voltage detection device;

detecting a voltage applied to the drive motor inverter by a second voltage detection device;

detecting a battery voltage by a third voltage detection device; and

determining a system voltage based on detection results provided by the first to third voltage detection devices.

11. The method according to claim 10, wherein determining a system voltage is based on a difference between two detection results of the detection results provided by the first to third voltage detection devices.

12. The method according to claim 10, wherein determining a system voltage is based on the detection result provided by each of the first to third voltage detection devices.

13. The method according to claim 12, wherein determining a system voltage is based on detection results provided by two of the first to third voltage detection devices, and a detection result provided by another one of the first to third voltage detection devices.

14. A machine-readable medium that provides instructions for processing information, instructions that, when executed by a processor, cause the processor to perform operations comprising:

detecting a voltage applied to an electric generator inverter by a first voltage detection device;

detecting a voltage applied to a drive motor inverter by a second voltage detection device;

detecting a battery voltage by a third voltage detection device; and

determining a system voltage based on detection results provided by the first to third voltage detection devices.

15. The machine-readable medium according to claim 14, wherein determining a system voltage is based on a difference between two detection results of the detection results provided by the first to third voltage detection devices.

16. The machine-readable medium according to claim 14, wherein determining a system voltage is based on the detection result provided by each of the first to third voltage detection devices.

17. The machine-readable medium according to claim 16, wherein determining a system voltage is based on detection results provided by two of the first to third voltage detection devices, and a detection result provided by another one of the first to third voltage detection devices.