IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0069349
(2002-02-22)
|
우선권정보 |
DE-0039874 (1999-08-24); DE-0015224 (2000-03-27) |
국제출원번호 |
PCT/EP00/07863
(2000-08-11)
|
국제공개번호 |
WO01/14194
(2001-03-01)
|
발명자
/ 주소 |
- Eckert, Alfred
- Neumann, Ulrich
- Berthold, Thomas
- Klein, Andreas
- Pfeiffer, Jü
- rgen
- Albrich von Albrichsfeld, Christian
|
출원인 / 주소 |
- Continental Teves AG & Co., oHG
|
대리인 / 주소 |
Rader, Fishman & Grauer PLLC
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
5 |
초록
▼
A method for controlling a brake system for automotive vehicles including a vehicle speed control unit permitting the adjustment of a predetermined vehicle speed by way of an automatic intervention into brake control, wherein upon a braking request of the vehicle speed control unit and, simultaneous
A method for controlling a brake system for automotive vehicles including a vehicle speed control unit permitting the adjustment of a predetermined vehicle speed by way of an automatic intervention into brake control, wherein upon a braking request of the vehicle speed control unit and, simultaneously, a braking request of the driver the function of the vehicle speed control unit is deactivated, wherein the pressure (Px) introduced into the wheel brake due to the braking request of the vehicle speed control unit is reduced according to a predetermined function upon the braking request of the driver, wherein preferably a resulting brake pressure (Pres) is adjusted in the wheel brake of the vehicle which is determined by the formula Pres=PF+PX[1]−(PF*PX[1])/constant Z.
대표청구항
▼
1. Device for controlling a brake system for vehicles, comprising: a vehicle speed control unit which includes means to adjust a predetermined vehicle speed by means of an automatic intervention into a brake controller and means for deactivating the function of the vehicle speed control unit in
1. Device for controlling a brake system for vehicles, comprising: a vehicle speed control unit which includes means to adjust a predetermined vehicle speed by means of an automatic intervention into a brake controller and means for deactivating the function of the vehicle speed control unit in the event of a simultaneous braking request from the vehicle speed control unit and a braking request of the driver, wherein the device includes means to reduce the pressure P Aintroduced into the wheel brake due to the braking request of the vehicle speed control unit according to a predetermined function PXin the event of the braking request of the driver, and means for adjusting a resulting brake pressure P resin the wheel brake of the vehicle that is determined by the formulaP res=PF+PX−(PF*PX)/constant Z, where: P Fis the pressure introduced into the wheel brake due to the brake request of the drive; P Xis the pressure introduced into the wheel brake by the vehicle speed control according to a predetermined function.2. Method for controlling a vehicle brake system, comprising the steps of: permitting a vehicle speed control unit to adjust a predetermined vehicle speed by way of an automatic intervention into a brake control, deactivating the vehicle speed control unit, upon a braking request of a vehicle driver, the deactivation of the vehicle speed control unit is accomplished by reducing a pressure P Aof the brake fluid pressure introduced into a wheel brake due to a braking request of the vehicle speed control unit according to a predetermined function PXupon the braking request of the driver, wherein an approximately linear ramp function is used as the predetermined function.3. Method as claimed in claim 2, wherein the predetermined function has a mean negative gradient mPXof 20 bar/5 sec to 30 bar/0.5 sec.4. Method as claimed in claim 2, wherein the function is variable, as a function of the braking request of the driver.5. Method as claimed in claim 2, the method further includes the step of: changing the predetermined function in accordance with the braking request of the driver, wherein upon a request of the driver for quick braking of the vehicle, the predetermined function is used causing quick reduction of the pressure P Aintroduced into the wheel brake due to the braking request of the vehicle speed control unit, and upon a request of the driver for slow braking of the vehicle, the predetermined function is used causing slow reduction of the pressure PAintroduced into the wheel brake due to the braking request of the vehicle speed control unit.6. Method as chimed in claim 2, the method further includes the steps of: changing the predetermined function in accordance with the braking request of the driver, wherein upon a request of the driver for quick braking of the vehicle, the predetermined function is used causing quick reduction of the pressure P Aintroduced into the wheel brake due to the braking request of the vehicle speed control unit, and upon a request of the driver for slow braking of the vehicle, the predetermined function is used causing slow reduction of the pressure PAintroduced into the wheel brake due to the braking request of the vehicle speed control unit, wherein a mean positive gradient mPFof the brake pressure is determined from the braking request of the driver, and therefrom the mean negative gradient mPXof the predetermined function is defined by the formulam PX=−mPF*constant K,until a top limit rate of 100 bar/sec is attained. 7. Method as claimed in claim 2, wherein a resulting brake pressure Presin the wheel brake of the vehicle is adjusted in accordance with the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced into the wheel brake due to the predetermined function.8. Method as claimed in claim 2, further including the step of: adjusting a brake pressure P resin the wheel brake of the vehicle a s a function of the sum of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced into the wheel brake due to the predetermined function.9. Method as claimed in claim 2, further including the step of: adjusting a resulting brake pressure P resin the wheel brake of the vehicle as a function of the greater of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced into the wheel brake due to the predetermined function.10. Method as claimed in claim 2, further including the step of: adjusting a resulting brake pressure P resin the wheel brake of the vehicle as a function of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced into the wheel brake due to the predetermined function, wherein a resulting brake pressure Presis adjusted in the wheel brake of the vehicle which corresponds to a value that is lower than a sum of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced by the predetermined function into the wheel brake, and which is higher than the higher one of the two pressures.11. Method as claimed in claim 2, further including the step of: adjusting a resulting brake pressure P resin the wheel brake of the vehicle as a function of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced into the wheel brake due to the predetermined function, and wherein the method further includes the step of:adjusting a resulting brake pressure Presin the wheel brake of the vehicle as a function of a value that is lower than a sum of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced by the predetermined function into the wheel brake, and which is higher than the highest one of the two pressures, wherein a resulting brake pressure Presis adjusted in the wheel brake of the vehicle which corresponds to a value that is determined by the formulaP res=PF+PX−(PF*PX)/constant Z.12. Method as claimed in claim 2, further including the step of: adjusting a resulting brake pressure P resin the wheel brake of the vehicle as a function of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced into the wheel brake due to the predetermined function, and wherein the method further includes the step of:adjusting a resulting brake pressure Presin the wheel brake of the vehicle which corresponds to a value that is lower than a sum of the pressure PFintroduced into the wheel brake due to the braking request of the driver and the pressure PXintroduced by the predetermined function into the wheel brake, and which is higher than the highest one of the two pressures, and the method further comprising a resulting brake pressure Presis adjusted in the wheel brake of the vehicle which corresponds to a value that is determined by the formulaP res=PF+PX−(PF*PX)/constant Z,wherein the constant Z has a value in the range of 20 bar to 100 bar. 13. Method as claimed in claim 2, wherein the brake pressure in the wheel brake is generated by independent energy.14. Method as claimed in claim 2, further including the step of: generating the brake pressure in the wheel brake by independent energy, wherein the brake pressure request of the driver is sensed by means of a pedal travel simulator and associated sensors and transmitted electronically to a brake control unit.
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