Method and system for controlling charge and discharge amounts of a main battery for a hybrid car

• US 20070284158A1
• Filed: 11/20/2006
• Published: 12/13/2007
• Est. Priority Date: 06/09/2006
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Choi, Yong Kak
• Application Number:
  US11/602,158
• Publication Number:
  US 20070284158A1
• Time in Patent Office: Days
• US Class Current: 180/65.100
• CPC Class Codes: B60L 15/2045 for optimising the use of energy
• CPC Class Codes: B60L 2260/42 by adaptive correction
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: H02J 7/1446 in response to parameters of a vehicle
• 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: Y02T 10/92 Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A method for controlling charge and discharge amounts of a main battery for a hybrid car includes receiving signals from the main battery, a driving motor, and an inverter system; and controlling charge and discharge amounts of the main battery through adjusting and learning a scale factor of the main battery in conformity with a driver'"'"'s driving pattern so that a state of charge is administrated in a normal zone. A system for controlling charge and discharge amounts of a main battery for a hybrid car includes a main battery; a driving motor; an inverter system; and a hybrid control unit receiving signals from the battery, motor, and inverter system, and controlling charge and discharge amounts of the main battery through adjusting and learning a scale factor of the main battery in conformity with a driver'"'"'s driving pattern so that a state of charge is administrated in a normal zone.

Claims

1. A method for controlling charge and discharge amounts of a main battery for a hybrid car, comprising the steps of:

sensing a vehicle operation state based on signals input from the main battery, a driving motor, and an inverter system; and

controlling charge and discharge amounts of the main battery, said controlling comprising adjusting and learning a scale factor of the main battery in conformity with a driving pattern of a driver so that a state of charge is administrated in a normal zone.

2. The method as claimed in claim 1, wherein the main battery enters an over-discharge zone when the hybrid car suddenly accelerates.

3. The method as claimed in claim 1, wherein the main battery enters an over-charge zone when the hybrid car is stopped or travels at a constant speed.

4. The method as claimed in claim 1, wherein the main battery enters an over-charge zone when the hybrid car suddenly decelerates.

5. The method as claimed in claim 1, further comprising storing data of control in conformity with the driving pattern of the driver.

6. The method as claimed in claim 1, further comprising readjusting a charge amount of the main battery when the driver or a load changes.

7. A system for controlling charge and discharge amounts of a main battery for a hybrid car, comprising:

a main battery outputting a signal indicative of main battery status;

a driving motor outputting a signal indicative of driving motor status;

an inverter system outputting a signal indicative of inverter system status; and

a hybrid control unit receiving said signals and controlling charge and discharge amounts of the main battery, said controlling comprising adjusting and learning a scale factor of the main battery in conformity with a driving pattern of a driver so that a state of charge is administrated in a normal zone.

8. The system as claimed in claim 7, wherein the main battery enters an over-discharge zone when the hybrid car suddenly accelerates.

9. The system as claimed in claim 7, wherein the main battery enters an over-charge zone when the hybrid car is stopped or travels at a constant speed.

10. The system as claimed in claim 7, wherein the main battery enters an over-charge zone when the hybrid car suddenly decelerates.

11. The system as claimed in claim 7, wherein the hybrid control unit comprises a memory that stores data of control in conformity with the driving pattern of the driver.

12. The system as claimed in claim 7, wherein the hybrid control unit readjusts a charge amount of the main battery when the driver or a load changes.