Control device for mobile unit

• US 8,311,691 B2
• Filed: 09/08/2006
• Issued: 11/13/2012
• Est. Priority Date: 09/08/2006
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Matsumoto, Katsunari
• Primary Examiner(s): Trammell, James
• Assistant Examiner(s): Marc, McDieunel
• Application Number:
  US12/310,280
• Publication Number:
  US 20090198397A1
• Time in Patent Office: 2,258 Days
• Field of Search: 701/22, 701/51, 701/56, 417/12, 417/44.1, 417/44.2, 417/44.3, 165/42, 165/43, 123/478, 123/492, 123/677, 123/480, 123/564, 123/568.27, 123/585, 477/28, 477/45, 477/49, 261/26, 474/28, 200/61.25, 318/481, 307/118, 340/626
• US Class Current: 701/22
• 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 2210/10 DC to DC converters
• CPC Class Codes: B60L 3/003 relating to inverters
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 50/60 using power supplied by batteries in combination with fuel cells B60L50/75
• 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 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 2555/00 Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
• CPC Class Codes: B60W 2555/20 Ambient conditions, e.g. wind or rain
• CPC Class Codes: H02P 29/032 Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
• 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 10/72 Electric energy management in electromobility

Abstract

An HV-ECU performs a step of detecting an atmospheric pressure, a step of calculating a maximum value of a boost voltage corresponding to the atmospheric pressure by using a map, and a step of setting the maximum value as a system voltage value and controlling a DC/DC converter. Moreover, the HV-ECU may calculate a resistance value of a gate resistance of a switching element corresponding to the atmospheric pressure by using the map and control the gate resistance to achieve the set resistance value.

Claims

1. A control device for a mobile unit having a motor mounted, electrical equipment supplying electric power to said motor being mounted on said mobile unit, the control device comprising:

a detecting unit detecting an atmospheric pressure; and

a control unit controlling said motor,

said control unit setting a maximum value of a voltage that is to be supplied to said motor and said electrical equipment so as to be reduced in accordance with a reduction in said detected atmospheric pressure, and

controlling said motor based on said set maximum value.

2. The control device for a mobile unit according to claim 1, wherein said control unit is configured to set said maximum value of the voltage such that an amount of partial discharge within an insulator of said motor is within a permissible range based on an environment comprising said detected atmospheric pressure.

4. The control device for a mobile unit according to claim 2, wherein electrical equipment supplying electric power to said motor is mounted on said mobile unit, and

said control unit sets any one of a voltage value that is to be supplied to said motor and said electrical equipment and said resistance value, depending on a condition of said motor.

3. A control device for a mobile unit having a motor mounted, comprising:

a detecting unit detecting an atmospheric pressure; and

a control unit controlling said motor,

said control unit setting a control value related to control of said motor in accordance with said detected atmospheric pressure, and

controlling said motor based on said set control value, an inverter supplying electric power to said motor being mounted on said mobile unit,

said inverter including a switching element and a driving circuit opening and closing said switching element, and

said control value being a resistance value of a gate resistance provided between said switching element and said driving circuit.

5. A control device for a mobile unit having a motor mounted, electrical equipment supplying electric power to said motor being mounted on said mobile unit, the control device comprising:

means for detecting an atmospheric pressure; and

control means for controlling said motor,

said control means including

means for setting a maximum value of a voltage that is to be supplied to said motor and said electrical equipment so as to be reduced in accordance with a reduction in said detected atmospheric pressure, and

means for controlling said motor based on said set maximum value.

6. The control device for a mobile unit according to claim 5, wherein said means for setting said maximum value of the voltage is configured to set said maximum voltage such that an amount of partial discharge within an insulator of said motor is within a permissible range based on an environment comprising said detected atmospheric pressure.

7. A control device for a mobile unit having a motor mounted, comprising:

means for detecting an atmospheric pressure; and

control means for controlling said motor,

said control means including

setting means for setting a control value related to control of said motor in accordance with said detected atmospheric pressure, and

means for controlling said motor based on said set control value, an inverter supplying electric power to said motor being mounted on said mobile unit,

said inverter including a switching element and a driving circuit opening and closing said switching element, and

said control value being a resistance value of a gate resistance provided between said switching element and said driving circuit.

8. The control device for a mobile unit according to claim 7, wherein

electrical equipment supplying electric power to said motor is mounted on said mobile unit, and

said setting means includes means for setting any one of a voltage value that is to be supplied to said motor and said electrical equipment and said resistance value, depending on a condition of said motor.

9. A method for controlling a mobile unit having a motor mounted, electrical equipment supplying electric power to said motor being mounted on said mobile unit, the method comprising the steps of:

detecting an atmospheric pressure; and

controlling said motor, said step of controlling said motor including the steps of;

setting by an electronic control unit a maximum value of a voltage that is to be supplied to said motor and said electrical equipment so as to be reduced in accordance with a reduction in said detected atmospheric pressure; and

controlling said motor based on said set maximum value.

10. The control device for a mobile unit according to claim 9, wherein the step of setting by an electronic control unit a maximum value of the voltage includes setting said maximum value such that an amount of partial discharge within an insulator of said motor is within a permissible range based on an environment comprising said detected atmospheric pressure.

11. A method for controlling a mobile unit having a motor mounted, comprising the steps of:

detecting an atmospheric pressure; and

controlling said motor, said step of controlling said motor including the steps of;

setting by an electronic control unit a control value related to control of said motor in accordance with said detected atmospheric pressure; and

controlling said motor based on said set control value,

an inverter supplying electric power to said motor being mounted on said mobile unit,

said inverter including a switching element and a driving circuit opening and closing said switching element, and

said control value being a resistance value of a gate resistance provided between said switching element and said driving circuit.

12. The method for controlling a mobile unit according to claim 11, wherein

electrical equipment supplying electric power to said motor is mounted on said mobile unit, and

said step of setting by an electronic control unit a control value includes a step of setting any one of a voltage value that is to be supplied to said motor and said electrical equipment and said resistance value, depending on a condition of said motor.

13. A control device for a mobile unit having a motor mounted, an inverter supplying electric power to said motor being mounted on said mobile unit, the control device comprising:

an atmospheric pressure sensor detecting an atmospheric pressure; and

an electronic control unit controlling said motor, said electronic control unit

setting a maximum value of a voltage that is to be supplied to said motor and said inverter so as to be reduced in accordance with a reduction in said detected atmospheric pressure, and

controlling said motor based on said set maximum value.

14. The control device for a mobile unit according to claim 13, wherein said electronic control unit is configured to set said maximum value of the voltage such that an amount of partial discharge within an insulator of said motor is within a permissible range based on an environment comprising said detected atmospheric pressure.

15. A control device for a mobile unit having a motor mounted, comprising:

an atmospheric pressure sensor detecting an atmospheric pressure; and

an electronic control unit controlling said motor, said electronic control unit

setting a control value related to control of said motor in accordance with said detected atmospheric pressure, and

controlling said motor based on said set control value,

an inverter supplying electric power to said motor being mounted on said mobile unit, said inverter including a switching element and a driving circuit opening and closing said switching element, and

said control value being a resistance value of a gate resistance provided between said switching element and said driving circuit.