Control apparatus for hybrid vehicle

• US 7,058,487 B2
• Filed: 08/10/2004
• Issued: 06/06/2006
• Est. Priority Date: 08/12/2003
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Asakawa, Masanobu, Hara, Kazuhiro
• Primary Examiner(s): NGUYEN, CUONG H
• Application Number:
  US10/914,139
• Publication Number:
  US 20050038576A1
• Time in Patent Office: 665 Days
• Field of Search: 701 51- 54, 701/22, 701/111, 701/115
• US Class Current: 701/22
• CPC Class Codes: B60K 6/48 Parallel type
• 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 10/26 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 20/13 in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
• CPC Class Codes: B60W 20/15 Control strategies specially adapted for achieving a particular effect
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

In a control apparatus for a hybrid vehicle which is able to travel under the driving force from at least one of an internal-combustion engine E and a drive motor connected to the internal-combustion engine, when an FI/AT/MGECU and a MOTECU execute motor damping which generates a torque for suppressing the torque vibration of the internal-combustion engine, in the motor M, the MOTECU corrects a motor torque calculating battery terminal current value obtained by multiplying an input-output current ABAT of the battery, by an offset value corresponding to the motor damping, and executes zero power control based on the corrected motor torque calculating battery current value. As a result, the input and output power of the power storage unit are accurately balanced and overcharge or overdischarge of the battery based on the input-output current ABAT of the battery including errors due to the damping control or the motor torque calculating battery current value, is avoided.

Claims

1. A control apparatus for a hybrid vehicle which is able to travel under the driving force from at least one of an engine and a drive motor connected to said engine, comprising:

a power storage unit which stores power for driving said drive motor;

a damping control device which executes damping control which generates a torque for suppressing torque vibration of said engine, in said drive motor; and

a power control device which executes zero power control as applied to the hybrid vehicle which balances an input power and an output power of said power storage unit based on an input-output current value of said power storage unit, when said damping control device executes said damping control.

2. A control apparatus for a hybrid vehicle according to claim 1, wherein said power control device offset corrects the input-output current value of said power storage unit, when said damping control device executes said damping control.

3. A control apparatus for a hybrid vehicle according to claim 1, wherein said power control device stops multiplication processing with respect to the input-output current value of said power storage unit, in the case where there are no charge instructions with respect to said power storage unit, and said damping control device executes said damping control.