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81. 发明专利

JP2009298300A Rear wheel steering device 审中-公开
标题翻译：后轮转向装置
公开(公告)号：JP2009298300A
公开(公告)日：2009-12-24
申请号：JP2008155292
申请日：2008-06-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ONUMA YUTAKA
IPC分类号： B62D6/00 , B62D5/04 , B62D7/14 , B62D101/00 , B62D107/00 , B62D113/00
摘要： PROBLEM TO BE SOLVED: To steer rear wheels while suppressing power consumption of a motor even in ultra-low speed traveling. SOLUTION: A basic target rear wheel steering angle δr0*(n) is calculated from a steering wheel steering angle θh (S401). A tire rolling distance X is calculated from count values Npl, Npr of pulse signals output by wheel speed sensors of right and left rear wheels (S402). The value obtained by multiplying the tire rolling distance X by a gain G is made a permissible steering angle variation G*X, and when the difference between the basic target rear wheel steering angle δr0*(n) and the target rear wheel steering angle δr*(n-1) of the most recent time is larger than the permissible steering angle variation G*X (S403: Yes), the target rear wheel steering angle δr*(n) is calculated by adding or reducing the permissible steering angle variation G*X to or from the target rear wheel steering angle δr*(n-1) of the most recent time (S406, S407). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在超低速行驶中，也可以抑制电动机的电力消耗而引导后轮。解决方案：从方向盘转向角θh计算出基本的目标后轮转向角δr0*（n）（S401）。由左右后轮的车轮速度传感器输出的脉冲信号的计数值Npl，Npr计算轮胎滚动距离X（S402）。通过将轮胎滚动距离X乘以增益G而获得的值被设定为允许的转向角变化量G * X，并且当基本目标后轮转向角δr0*（n）与目标后轮转向角δr 最近时间的*（n-1）大于允许的转向角变化量G * X（S403：是），则通过增加或减少允许转向角变化来计算目标后轮转向角δr*（n） G * X到目标后轮转向角δr*（n-1）（S406，S407）。版权所有（C）2010，JPO＆INPIT

82. 发明专利

JP2009149260A Steering assist force control device 有权
标题翻译：转向辅助力控制装置
公开(公告)号：JP2009149260A
公开(公告)日：2009-07-09
申请号：JP2007330936
申请日：2007-12-21
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ONODA YUICHI , ONUMA YUTAKA
IPC分类号： B62D6/00
摘要： PROBLEM TO BE SOLVED: To provide a steering assist force control device capable of preventing assist shortage without excessively restricting steering assist force.
SOLUTION: This steering assist force control device 100 to control the steering assist force which a motor 4 generates is furnished with an instant allowance computing means 11 to compute instant allowance of electric energy which the motor 4 can use in accordance with an electric current value or a voltage value supplied to the motor 4 and a steering assist force control means 10 to control the steering assist force which the motor 4 generates in accordance with steering torque input by a steering handle and instant allowance of the electric energy which the motor 4 can use.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不过度限制转向辅助力的情况下防止辅助不足的转向辅助力控制装置。解决方案：用于控制电动机4产生的转向辅助力的该转向辅助力控制装置100配备有即时容限计算装置11，以计算电动机4根据电动机能够使用的电能的即时容限提供给电动机4的电流值或电压值以及转向辅助力控制装置10，以根据转向手柄输入的转向转矩和电动机的瞬时容许量来控制电动机4产生的转向辅助力 4可以使用。版权所有（C）2009，JPO＆INPIT

83. 发明专利

JP2009143431A Steering device for vehicle 有权
标题翻译：车辆转向装置
公开(公告)号：JP2009143431A
公开(公告)日：2009-07-02
申请号：JP2007323542
申请日：2007-12-14
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ONUMA YUTAKA , TANAKA HAJIME
IPC分类号： B62D5/04 , B62D1/18 , B62D6/00 , B62D101/00 , B62D113/00 , B62D119/00 , B62D137/00 , G01L3/14
摘要： PROBLEM TO BE SOLVED: To provide a steering device for a vehicle capable of estimating steering torque imparted to a steering wheel by utilizing an eccentric cam mechanism.
SOLUTION: This steering device is provided with an input shaft 14, an output shaft 16 arranged eccentrically to the input shaft 14, a discoid cam 42 rotating together with one of the input shaft 14 and the output shaft 16 and having a cam groove 44, a holding plate 50 rotating together with the other of the input shaft 14 and the output shaft 16 and holding an eccentric pin 46 at a position offset from the other shaft, the eccentric pin 46 having one end held on the holding plate 50 and the other end slidably supported in the cam groove 44 of the cam 42, a load detection means 70 for detecting load acting between the holding plate 50 and the eccentric pin 46, and a steering torque estimation means 80 for estimating steering torque imparted to the steering wheel based on the load detected by the load detection means 70.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过利用偏心凸轮机构估计赋予方向盘的转向转矩的用于车辆的转向装置。解决方案：该转向装置设置有输入轴14，与输入轴14偏心布置的输出轴16，与输入轴14和输出轴16中的一个一起旋转的盘状凸轮42，并具有凸轮凹槽44，与输入轴14和输出轴16中的另一个一起旋转并将偏心销46保持在偏离另一个轴的位置的保持板50，偏心销46的一端保持在保持板50上并且另一端可滑动地支撑在凸轮42的凸轮槽44中，用于检测作用在保持板50和偏心销46之间的负载的负载检测装置70以及用于估计施加到凸轮42的转向扭矩的转向扭矩估计装置80 基于由负载检测装置70检测到的负载的方向盘。版权所有（C）2009，JPO＆INPIT

84. 发明专利

JP2000168536A BRAKE LIQUID PRESSURE CONTROL DEVICE 失效
公开(公告)号：JP2000168536A
公开(公告)日：2000-06-20
申请号：JP35142398
申请日：1998-12-10
申请人： TOYOTA MOTOR CORP
发明人： SOGA MASAYUKI , ONUMA YUTAKA , SAKAMOTO JUNICHI , SUGITANI TATSUO , SAKAI AKIRA
IPC分类号： B60T8/94 , B60T8/1766 , B60T17/18
摘要： PROBLEM TO BE SOLVED: To provide a brake liquid pressure control device capable of suppressing a drop of the braking performance even in case any unbraked wheel is generated owing to a liquid leak at any wheel cylinder. SOLUTION: A brake liquid pressure control device includes a controller to put an accumulator 38 in communication with the wheel cylinders 48FL-48RR of car wheels when a brake 12 is to be operated and control the liquid pressures of the cylinders 48FL-48RR, wherein a sensing means senses any failed wheel to be braked, and the controller shuts off the liquid pressure supplied from the accumulator to the applicable cylinder for the failed wheel and also makes appropriate control of the liquid pressures of the other wheel cylinders.

85. 发明专利

JPH11301434A BRAKE FORCE CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JPH11301434A
公开(公告)日：1999-11-02
申请号：JP12288998
申请日：1998-04-16
申请人： TOYOTA MOTOR CORP
发明人： ONUMA YUTAKA , SUGITANI TATSUO
IPC分类号： B60T8/00 , B60T8/32 , B60T8/40 , B60T13/66 , B60T13/68
摘要： PROBLEM TO BE SOLVED: To accurately and adequately control a brake force according to brake requirement from a driver. SOLUTION: A target deceleration Gst is calculated based on a pushing stroke Sp of a brake pedal (S20), a target deceleration Gpt is calculated based on a master cylinder pressure Pm (S30), a weight α for the target deceleration Gpt is calculated based on a final target deceleration Gt calculated at previous time (S40), a final target deceleration Gt is calculated as a weighting sum of the target deceleration Gpt and the target deceleration Gst (S50), a target wheel cylinder pressure Pti for each wheel is calculated as a value proportional to the final target deceleration Gt (S60), a wheel cylinder pressure Pti for each wheel is feedback controlled so as to be the target wheel cylinder pressure Pti (S70).

86. 发明专利

JPH11198782A BRAKE DEVICE 失效
公开(公告)号：JPH11198782A
公开(公告)日：1999-07-27
申请号：JP838398
申请日：1998-01-20
申请人： TOYOTA MOTOR CORP
发明人： ISONO HIROSHI , MIZUTANI KYOJI , ONUMA YUTAKA , KONDO KOICHI , NITTA HIROSHI , SUZUKI MOTOJI
IPC分类号： B60T8/26 , B60T8/00 , B60T8/36 , B60T8/44 , B60T8/48 , B60T13/00 , B60T13/138 , B60T13/52 , B60T13/575 , B60T13/68
摘要： PROBLEM TO BE SOLVED: To stabilize a brake operating feeling irrespective of a variation in assistance limit point according to a pressure of a negative pressure source in a brake device of a vehicle provided with a booster device for boosting a brake cylinder hydraulic pressure to a hydraulic pressure higher than a master cylinder hydraulic pressure in order to prevent a brake effectiveness due to lowering of capacity of a vacuum booster connected to the negative pressure source from being lowered. SOLUTION: A vacuum booster is structured so that it reaches an assistance limit point PL after moving from a large magnification ratio area to a small magnification ratio area when a brake operating force (f) is increased, and its magnification ratio area movement point PC is not varied according to the pressure from the negative pressure source. Also the booster device is structured so that it boosts the brake cylinder hydraulic pressure PB to a hydraulic pressure higher than the master cylinder hydraulic pressure PM with the magnification ratio are movement point PC taken as a boosting starting point PS.

87. 发明专利

JPH1148935A BRAKE DEVICE FOR VEHICLE 失效
公开(公告)号：JPH1148935A
公开(公告)日：1999-02-23
申请号：JP22565397
申请日：1997-08-07
申请人： TOYOTA MOTOR CORP
发明人： SAWADA KOICHI , ONUMA YUTAKA , SUZUKI MASAKUNI , ITO KENJI
IPC分类号： B60T8/48 , B60T8/1761
摘要： PROBLEM TO BE SOLVED: To maintain the correspondence of treadling force of a brake pedal to the pressure within a wheel cylinder and to vary the tread-in of the brake pedal. SOLUTION: This brake device is provided with a main conduit 18 which transmits the pressure within a master cylinder 12 to a wheel cylinder 20 FR; first control valves 28 FR, 32 FR which control the pressure within the wheel cylinder 20 FR; a second control valve 36 which is installed in the main conduit 18 and in between the master cylinder 12 and the first control valves 28 FR, 32 FR and which regulates the pressure within the wheel cylinder 20 FR to the pressure higher than the pressure within the master cylinder 12 by prescribed measure; a high-pressure oil supplying device 58 which supplies the high-pressure hydraulic fluid as necessary to the main conduit 18 installed between the first control valves 28 FR, 32 FR and the second control valve 36; and a third control valve 46 which controls the circuit communication between a reservoir 24 and a main passage from the master cylinder 12 to the second control valve 36.

88. 发明专利

JPH09290719A BRAKING FORCE CONTROL DEVICE 失效
公开(公告)号：JPH09290719A
公开(公告)日：1997-11-11
申请号：JP10817796
申请日：1996-04-26
申请人： TOYOTA MOTOR CORP
发明人： ONUMA YUTAKA
IPC分类号： B60T8/00 , B60T7/12 , B60T8/32 , B60T8/48 , B60T13/66
摘要： PROBLEM TO BE SOLVED: To eliminate a trouble worsening comfortableness o a vehicle, by inhibiting a start of brake assist control generating braking force larger that at ordinary control time, in the case of satisfying a prescribed condition in an operating condition of a brake pedal, during execution of antilock brake control. SOLUTION: In an ECU10, after a brake pedal 30 is stepped in, in the case of detecting a master cylinder pressure and chenge factor exceeding a prescribed value, emergency brake operation is judged to be performed, a drive signal is output to a regulator switching solenoid 26 and a first to third assist solenoids 44, 48, 54. In this way, in no relation to intensity of rake stepping force, pressure of wheel cylinder 44FR to 44RL is rapidly increased, large braking force is quickly generated. However, brake assist control thus performed in inhibited by a control inhibiting means during execution of antilock brake control. In this way, unreasonably executing brake assist control is prevented.

89. 发明专利

JPH07257337A VEHICLE TURNING BEHAVIOR CONTROL DEVICE 失效
公开(公告)号：JPH07257337A
公开(公告)日：1995-10-09
申请号：JP20240394
申请日：1994-08-26
申请人： TOYOTA MOTOR CORP
发明人： ONUMA YUTAKA , NIWA SATORU
IPC分类号： B60T8/24 , B60T8/1755 , B60T8/58
摘要： PURPOSE:To perform the stabilized turning without lowering the operability. CONSTITUTION:The vehicle turning behavior condition is acquired by a vehicle turning behavior condition acquiring means (M1). On the basis of this vehicle turning behavior condition, target steering operation is computed by a target steering operation computing means (M3). On the other hand, vehicle steering operation by an operator is acquired by a steering operation acquiring means (M2). Next, a deviation between the target steering operation and the steering operation is computed by a steering operation deviation computing means (M4), and the vehicle turning behavior due to the steering operation deviation is restricted by controlling the vehicle turning behavior characteristic with a vehicle turning behavior characteristic control means.

90. 发明专利

JPH07117645A BRAKE CONTROLLER 失效
公开(公告)号：JPH07117645A
公开(公告)日：1995-05-09
申请号：JP27067393
申请日：1993-10-28
申请人： TOYOTA MOTOR CORP
发明人： YOSHIDA HIROO , ONUMA YUTAKA , HARA MASAHIRO , CHIBA TADASHI , NIWA SATORU , OTA MASASHI , NAKAMURA AKIRA
IPC分类号： B60T8/24 , B60T8/172 , B60T8/1755 , B60T8/32
摘要： PURPOSE:To carry out the ideal brake control even in the retreat of a vehicle, by applying the brake control on the rear and front wheels through the reversal in the retreat of the vehicle, in the control applied on a brake mechanism for the front and rear wheels in the advance of the vehicle. CONSTITUTION:A brake controller is equipped with a target behavior setting means M3 which sets the target behavior of a vehicle on the basis of the result of the detection of a car speed detecting means M1 and a steering angle detecting means M2, and a brake control means M7 controls a brake mechanism M5 on the basis of the sutual vehicle behavior detected by a behavior detecting means M4 and the target behavior. In this case, on the basis of the result of the detection of a retreat judging means M6, i.e., if the actual yaw rate YR> target yaw rate YT, not in retreat, the brake control means M7 applies a brake power to a front outer wheel, and oversteering is eliminated, while if YR

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