WO2008117724A1 - Electric brake device and method of controlling electric brake device - Google Patents

Electric brake device and method of controlling electric brake device Download PDF

Info

Publication number
WO2008117724A1
WO2008117724A1 PCT/JP2008/055127 JP2008055127W WO2008117724A1 WO 2008117724 A1 WO2008117724 A1 WO 2008117724A1 JP 2008055127 W JP2008055127 W JP 2008055127W WO 2008117724 A1 WO2008117724 A1 WO 2008117724A1
Authority
WO
WIPO (PCT)
Prior art keywords
waveform
brake device
electric brake
voltage
brushless motor
Prior art date
Application number
PCT/JP2008/055127
Other languages
French (fr)
Japanese (ja)
Inventor
Keisuke Suzuki
Yoshitaka Sugiyama
Kouji Takahashi
Original Assignee
Hitachi, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008046975A external-priority patent/JP2008265730A/en
Application filed by Hitachi, Ltd. filed Critical Hitachi, Ltd.
Publication of WO2008117724A1 publication Critical patent/WO2008117724A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/404—Control of the pump unit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

Provided are an electric brake device and a method of controlling the electric brake device. The electric brake device has a brushless motor for driving a pump for raising the pressure in a wheel cylinder that is installed on a wheel and generating braking force, an inverter circuit adapted for drive of the brushless motor, a control unit for sending a drive signal to the inverter circuit, and a braking-request calculation section for calculating a braking request based on conditions of a vehicle. The control unit has a first waveform drive section for applying a voltage of a first waveform (rectangular wave) to each phase of the brushlessmotor, a second waveform drive section for applying a voltage of a second waveform (sine wave), and an application voltage selection section for selecting an application voltage based on the calculated braking request. When the calculated braking request is greater than a pressure rise gradient that requires a predetermined pump discharge flow rate, the application voltage selection section applies the first waveform voltage to each phase of the brushless motor, and when smaller than the predetermined pressure rise gradient, the application voltage selection section applies second waveform voltage.
PCT/JP2008/055127 2007-03-24 2008-03-19 Electric brake device and method of controlling electric brake device WO2008117724A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007078004 2007-03-24
JP2007-078004 2007-03-24
JP2008046975A JP2008265730A (en) 2007-03-24 2008-02-28 Electric brake device and method of controlling electric brake device
JP2008-046975 2008-02-28

Publications (1)

Publication Number Publication Date
WO2008117724A1 true WO2008117724A1 (en) 2008-10-02

Family

ID=39788460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055127 WO2008117724A1 (en) 2007-03-24 2008-03-19 Electric brake device and method of controlling electric brake device

Country Status (1)

Country Link
WO (1) WO2008117724A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014233188A (en) * 2013-05-30 2014-12-11 カルソニックカンセイ株式会社 Control method for vehicle brushless motor
JP2019134588A (en) * 2018-01-31 2019-08-08 株式会社デンソー Controller of rotary electric machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998050263A1 (en) * 1997-05-06 1998-11-12 Kelsey-Hayes Co. An electronic brake management system with a signal modulation controller and a brushless motor
JPH11285288A (en) * 1998-03-26 1999-10-15 Toyota Motor Corp Motor control device and method therefor
JP2003309993A (en) * 2002-04-15 2003-10-31 Nissan Motor Co Ltd Motor control apparatus
JP2006191762A (en) * 2005-01-07 2006-07-20 Matsushita Electric Ind Co Ltd Motor drive device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998050263A1 (en) * 1997-05-06 1998-11-12 Kelsey-Hayes Co. An electronic brake management system with a signal modulation controller and a brushless motor
JPH11285288A (en) * 1998-03-26 1999-10-15 Toyota Motor Corp Motor control device and method therefor
JP2003309993A (en) * 2002-04-15 2003-10-31 Nissan Motor Co Ltd Motor control apparatus
JP2006191762A (en) * 2005-01-07 2006-07-20 Matsushita Electric Ind Co Ltd Motor drive device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014233188A (en) * 2013-05-30 2014-12-11 カルソニックカンセイ株式会社 Control method for vehicle brushless motor
JP2019134588A (en) * 2018-01-31 2019-08-08 株式会社デンソー Controller of rotary electric machine
JP7081180B2 (en) 2018-01-31 2022-06-07 株式会社デンソー Rotating electric machine control device

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