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1. 发明专利

JP2004276645A Brake control device 有权
公开(公告)号：JP2004276645A
公开(公告)日：2004-10-07
申请号：JP2003066980
申请日：2003-03-12
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HARA MASAHIRO , YOTSUYA KOJI , MIZUTANI KYOJI
IPC分类号： B60T8/00 , B60T8/1761 , B60T8/58
摘要： PROBLEM TO BE SOLVED: To provide a brake control device capable of providing brake assisting effect and sufficiently exhibiting brake performance.
SOLUTION: When an anti-lock brake control and a brake assisting control are simultaneously performed, if a brake fluid pressure value P after a brake fluid pressure is increased by the brake assisting control and increased or decreased by the anti-lock brake control is smaller than a prescribed set value K, the brake fluid pressure value is corrected to a higher one.
COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2004231124A Braking system 审中-公开
标题翻译：制动系统
公开(公告)号：JP2004231124A
公开(公告)日：2004-08-19
申请号：JP2003024775
申请日：2003-01-31
申请人： Advics:Kk , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社アドヴィックス
发明人： HARA MASAHIRO , TSUBOI HIRONOBU , WADA TOMIHIRO , MASHITA SHIGERU , KITO YOSHIAKI
IPC分类号： B60T8/58 , B60R16/02 , B60T8/172 , B60T8/1763
摘要： PROBLEM TO BE SOLVED: To provide a braking system for precisely controlling braking force. SOLUTION: The braking system controls hydraulic pressure passages between a master cylinder and each wheel cylinder so that the transmission coefficient of hydraulic pressure from the master cylinder to the wheel cylinders provided on wheels on a high μ load side becomes smaller as master cylinder pressure has a higher increasing speed when there are different friction coefficients between each of right and left wheels and a road surface. Even when the master cylinder pressure increases at a high speed, the transmission coefficient becomes smaller and so the wheel cylinder pressure dose not increase at a high speed, and even when the master cylinder pressure increases at a low speed, the transmission coefficient becomes larger and so the wheel cylinder pressure does not increase at a low speed. As a result, the increasing speed dependability of the wheel cylinder pressure on the master cylinder pressure is suppressed and the wheel cylinder pressure provided on the wheels on the high μ road side to be subjected to yaw control during travel on a crossover road, namely, braking force is more precisely controlled. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于精确控制制动力的制动系统。
解决方案：制动系统控制主缸和每个车轮缸之间的液压通道，使得在主负载侧的车轮上设置的从主缸到轮缸的液压传动系数随着主缸当左右两轮和路面之间存在不同的摩擦系数时，压力具有较高的增加速度。即使主缸压力高速增加，传动系数变小，轮缸压力也不会以高速增加，即使主缸压力以低速度增加，传动系数变大，所以轮缸压力不会以低速增加。结果，抑制了轮缸压力对主缸压力的增加的速度可靠性，并且设置在高μ路侧的车轮上的轮缸压力在跨越道路行驶期间进行偏航控制，即，制动力更精确地控制。版权所有（C）2004，JPO＆NCIPI

3. 发明专利

JP2003095080A VEHICLE CONTROL DEVICE 审中-公开
公开(公告)号：JP2003095080A
公开(公告)日：2003-04-03
申请号：JP2001287443
申请日：2001-09-20
申请人： TOYOTA MOTOR CORP
发明人： NIHEI TOSHIHISA , HARA MASAHIRO
IPC分类号： B60T8/58 , B60T8/1761
摘要： PROBLEM TO BE SOLVED: To accurately and surely detect a lift-up state of a vehicle as compared with the conventional by judging the lift-up state of the vehicle on the basis of a change mode of a vehicle height. SOLUTION: In the case that the vehicle is in a braking state (S20), a deviation between a rear wheel vehicle height Hr and a front wheel vehicle height Hf is equal to or higher than a deviation reference value (S60), the rear wheel vehicle height Hr is equal to or higher than a vehicle height reference value (S70), a deceleration speed Gxb of the vehicle is equal to or higher than a deceleration speed reference value (S80), in the case that a state that wheel acceleration Vwrd of the rear wheel is equal to or lower than a wheel acceleration reference value (S90) continues for a prescribed time or longer (S100 and 120), the vehicle is judged the lift-up state, reduction (S160) of braking force of the rear wheel in braking force distribution control and control of braking force of prevention (S320-S340) or the like of excessive increase of an estimated wheel speed of antiskid control are performed (S160).

4. 发明专利

JP2002356151A VEHICULAR BRAKING FORCE CONTROLLER 失效
公开(公告)号：JP2002356151A
公开(公告)日：2002-12-10
申请号：JP2001163221
申请日：2001-05-30
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： HARA MASAHIRO , NIHEI TOSHIHISA , MATSUI NARIYUKI , MATSUURA MASAHIRO
IPC分类号： B60T8/17 , B60K1/02 , B60K6/20 , B60K6/44 , B60K6/52 , B60K6/543 , B60K17/356 , B60K28/16 , B60L7/24 , B60L7/26 , B60T8/00 , B60T8/1761 , B60T8/26 , B60W10/06 , B60W10/18 , B60W20/00 , B60K6/02
摘要： PROBLEM TO BE SOLVED: To exactly and effectively prevent rapid fluctuation of vehicular deceleration caused by rapid reduction of regenerative braking force in initiation of anti-skid control. SOLUTION: Target braking forces Fbft and Fbrt of front and rear wheels are calculated on the basis of a braking manipulated variable of a driver and a front and rear wheel braking force distribution ratio (S10-50). Target regenerative braking forces Frgft and Frgrt of the front and rear wheels are calculated on the basis of the target braking forces so that regenerative efficiency is maximized (S60). Since there is high probability that the anti-skid control will be initiated when a sudden braking operation or a braking operation during vehicular deceleration is performed by the driver or when a vehicular side-skid speed is high, the target regenerative braking forces are gradually reduced and target friction braking forces are gradually increased (S76A-78 and S88A-92). When the anti-skid control is initiated, the target regenerative braking forces are set at 0 (S82 and 96).

5. 发明专利

JP2002104156A BRAKING/DRIVING FORCE CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JP2002104156A
公开(公告)日：2002-04-10
申请号：JP2000294739
申请日：2000-09-27
申请人： TOYOTA MOTOR CORP
发明人： SHIMADA MICHIHITO , NIWA SATORU , SAKAMOTO JUNICHI , HARA MASAHIRO
IPC分类号： B60T8/17 , B60L7/10 , B60L7/24 , B60L7/26 , B60L50/16 , B60T8/175 , B60T8/1755 , B60T8/00 , B60L11/14 , B60T8/58
摘要： PROBLEM TO BE SOLVED: To improve regenerative efficiency in a state of automatically and individually controlling a braking force or a driving force of each wheel by motion control of a vehicle. SOLUTION: Final desired braking pressures of right and left front wheels are calculated based on a desired braking force of a control operation or a traction control of a driver (S20), a regeneratable torque KTf is calculated based on the smaller final desired braking pressure (S50, 60, and 80), a desired friction braking pressure achieving a desired braking force corresponding to the final desired braking force of the vehicle in cooperation with the regenerative braking about the wheel having the larger final desired braking pressure is calculated, and a desired friction braking pressure of another wheel is set zero (S70 and 90). A desired driving torque PTf of the front wheel's axle is calculated based on the desired braking forces of the right and left front wheels under the traction control (S100 and 110), the braking/driving force of a hybrid engine 10 is controlled based on final desired braking/driving torque KFTf (=PTf-KTf) of the front wheel's axle (S120), and friction braking pressures of the right and left front wheels are controlled to the desired friction braking pressure (S130).

6. 发明专利

JP2000016259A BRAKE CONTROL DEVICE 失效
公开(公告)号：JP2000016259A
公开(公告)日：2000-01-18
申请号：JP18633598
申请日：1998-07-01
申请人： TOYOTA MOTOR CORP
发明人： HARA MASAHIRO
IPC分类号： B60T8/00 , B60T8/172 , B60T8/48
摘要： PROBLEM TO BE SOLVED: To inhibit decrease in controllability of antilock brake (ABS) control during brake assist(BA) control, relating to a brake control device having the function of executing the BA control and the ABS control. SOLUTION: A brake control device includes solenoids SMFR 42, SMFL 44, which are capable of shutting a master cylinder 18 off from wheel cylinders 82, 84, and a front pump 110 communicated with their downstream sides. If an emergency brake operation is effected, the solenoids SMFR 42, SMFL 44 are closed and the front pump 110 is turned on whereby hydraulic pressures within hydraulic pressure passages 48, 50 build up. The hydraulic pressures are supplied to the wheel cylinders 82, 84 whereby BA control is put into action. When ABS control is started during the BA control, the solenoids SMFR 42, SMFL 44 are closed if the BA control is determined to be not effective.

7. 发明专利

JPH1129017A BRAKING FORCE CONTROLLER 失效
公开(公告)号：JPH1129017A
公开(公告)日：1999-02-02
申请号：JP18282397
申请日：1997-07-08
申请人： TOYOTA MOTOR CORP
发明人： NAKANISHI NOBUYASU , YAMADA AKIRA , SHIMIZU SATOSHI , AIZAWA HIDEYUKI , HARA MASAHIRO
IPC分类号： B60T8/00
摘要： PROBLEM TO BE SOLVED: To produce a wheel cylinder pressure that accurately reflects the driver's intention during a brake assist in a braking force controller having pumps for feeding brake fluid sucked thereinto from a master cylinder to wheel cylinders. SOLUTION: Normally, a first master-cut solenoid (SMC-1 ) 30 is opened, and a first reservoir-cut solenoid (SRC-1 ) 32 is closed. For a brake assist, a pump 100 is actuated and also SMC-1 30 and SRC-1 32 are properly controlled on the basis of an output signal pMC from a fluid pressure sensor 29. The pressure in a master cylinder fluctuates just before and after a change in the state of SRC-1 32, with the result that the output signal pMC does not correspond exactly with the brake operation level that the driver intends. In such a condition, the output signal pMC is prevented from being reflected on the brake assist.

8. 发明专利

JPH1120637A BRAKING FORCE CONTROLLER 失效
公开(公告)号：JPH1120637A
公开(公告)日：1999-01-26
申请号：JP18282197
申请日：1997-07-08
申请人： TOYOTA MOTOR CORP
发明人： NAKANISHI NOBUYASU , YAMADA AKIRA , SHIMIZU SATOSHI , AIZAWA HIDEYUKI , HARA MASAHIRO
IPC分类号： B60T8/00 , B60T8/58
摘要： PROBLEM TO BE SOLVED: To provide a braking force controller provided with a pump which supplies brake fluid suctioned from a master cylinder to a wheel cylinder so as to prevent master cylinder pressure from affecting pressure intensifying characteristics of wheel cylinder pressure. SOLUTION: This controller is provided with a pump 100 which suctions brake fluid from a liquid pressure passage 26 which communicates a master cylinder 18 with wheel cylinders 70, 72. A liquid pressure sensor 29 is communicated with the liquid pressure passage 26. When emergency brake operation is performed, brake assist control in which liquid pressure discharged from the pump 100 is supplied to wheel cylinders 74, 76 is done. Discharge capacity of the pump 100 changes according to master cylinder pressure. When wheel cylinder pressure is increased, pressure intensifying conditions are changed according to master cylinder pressure so that the changes of the discharge capacity of the pump 100 are offset.

9. 发明专利

JPH10244924A BRAKING FORCE CONTROL DEVICE 失效
公开(公告)号：JPH10244924A
公开(公告)日：1998-09-14
申请号：JP5207797
申请日：1997-03-06
申请人： TOYOTA MOTOR CORP
发明人： HARA MASAHIRO
IPC分类号： B60T8/00 , B60T8/1761 , B60T8/58
摘要： PROBLEM TO BE SOLVED: To prevent the completion of an ABS control while remaining a high-pressure wheel cylinder pressure PW/ C, in a braking-force control device for executing both a BA control for producing a larger braking force as compared with the ordinary time when an emergency braking operation is carried out and an ABS control. SOLUTION: A suction liquid quantity Q supplied at the time of a BA control from a pump to a wheel cylinder is calculated (S20). When Q>0, it is judged that there is a possibility that when the brake fluid inside the wheel cylinder is forcibly fed to a master cylinder during the execution of ABS control, the brake pedal is forcibly returned to the initial position (S202). In this case, on the condition that the output signal of a stop switch is an off signal, and also that a master cylinder pressure PM/ C is sufficiently low, the ABS control is completed.

10. 发明专利

JPH10119742A BRAKING FORCE DISTRIBUTION CONTROLLER 失效
公开(公告)号：JPH10119742A
公开(公告)日：1998-05-12
申请号：JP27810296
申请日：1996-10-21
申请人： TOYOTA MOTOR CORP
发明人： HARA MASAHIRO
IPC分类号： B60T8/24 , B60T8/172 , B60T8/1755 , B60T8/1763 , B60T8/1764 , B60T8/1766 , B60T8/26 , B60T8/58
摘要： PROBLEM TO BE SOLVED: To accomplish both of prevention of a spin and sure acquisition of a braking force by performing control so that a rear wheel braking force is relatively increased during turning traveling on a high μ road as against that during turning traveling on a low μ road. SOLUTION: Braking force distribution control in a step 112 is finished when three decisions in steps 113-115 are normally executed and continued and the predetermined condition is satisfied in each of the decisions. It is determined whether or not a road surface is a low μ road surface, and a road surface μis determined on the basis of an Rr relative slip ratio to a front wheel slip ratio during a braking force distribution control, and its absolute value is high on a low μ road, while its absolute vale is low on a low μroad. A low μ road is determined if the road surface μ is the predetermined vale or less, while a high μ road is determined if the road surface μ is the predetermined value or more. On the low μ road, the step 112 is executed unless conditions in the steps 113 114 are satisfied, and a spin in turning traveling on the low μroad is suppressed. Contrarily, when the high μ road is determined, process is transferred to a step 116, and a braking force for turning traveling on the high μroad is secured.

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