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1. 发明专利

JPH0343637A PROPULSION CONTROLLER OF AUTOMOBILE 失效
公开(公告)号：JPH0343637A
公开(公告)日：1991-02-25
申请号：JP17864089
申请日：1989-07-10
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： SUZUKAWA TETSUO , TAMURA KIMIO , ISE SEIKI
IPC分类号： B60W10/00 , B60W10/04 , B60W10/06 , B60W10/18 , B60W10/184 , F02D29/02 , F02D45/00
摘要： PURPOSE:To eliminate abrupt change in control and running performance by calculating a weight coefficient that changes gradually in a predetermined range according to a running condition of an automobile, and by controlling a driving torque of an engine by means of making a comparison between a weight average speed of a driving wheel based on the weight coeficient and a reference speed. CONSTITUTION:In order to prevent a driving wheel A from slipping at the time of accelerating an automobile, a driving torque of an engine B is controlled. Rotational speed of right and left driving wheels A in the automobile is detected by a means C. A running condition of the automobile is detected by a means D. According to the running condition of the automobile, a weight coefficient that changes gradually in a predetermined range is calculated by a means E. Based on a rotational speed of the driving wheel A and on the weight coefficient, a weight average speed is calculated by a means F. A reference speed to the slipping of the wheel is set by a means G. Comparison between the weight average speed and the reference speed is made, and the driving torque of the engine is controlled by a means H, according to the results of the comparison.

2. 发明专利

JPH01111558A ANTI-SKID/TRACTION CONTROL TYPE BRAKING DEVICE 失效
公开(公告)号：JPH01111558A
公开(公告)日：1989-04-28
申请号：JP18069188
申请日：1988-07-20
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： INOUE YOSHIAKI , NOMURA YOSHIHISA , ISE SEIKI , OTSUKI HIROMI
IPC分类号： B60T8/175 , B60T8/1761 , B60T8/48 , B60T8/58
摘要： PURPOSE:To enable a device to be applied to any vehicle under various specifications by providing a fluid pressure source controlling traction separately from a fluid pressure source controlling anti-skid units, and constituting it in such a way to be connected with the fluid pressure braking device of an anti- skid controlling type via an electromagnetic switchover device. CONSTITUTION:An actuator 50 controlling traction is connected between fluid passages 18 and 20 introducing brake fluid pressure produced by one of the pressurizing chambers of a tandem master cylinder 14 to a right and a left rear wheel cylinder 24. The aforesaid actuator 50 is controlled by a three position valve 52 which enables switchover made among a normal position communicating the master cylinder 14 with a three position valve 26 for anti-skid control, a traction control position communicating a fluid pressure source 56 for traction control with three position valve 26 and an interruption position which does not allow both the master cylinder 14 and the fluid pressure source 56 to be communicated with three position valve 26. The fluid pressure source 56 is composed of a pump 60 and of an accumulator 62 so as to be controlled by a control unit 54 based on the output from a pressure switch 66.

3. 发明专利

JPS6444369A SLIP CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JPS6444369A
公开(公告)日：1989-02-16
申请号：JP20030187
申请日：1987-08-10
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： YOGO KAZUTOSHI , SUZUKI HIDEAKI , MINEGISHI HARUMASA , ISE SEIKI
IPC分类号： B60T8/175 , B60T8/172 , B60T8/1755 , B60T8/1764 , B60T8/58
摘要： PURPOSE:To prevent the speed variation in the right and left driving wheels, when a slip condition is detected, by selectively outputting either control signal for regulating independently respective braking forces of the right and left driving wheels or control signal for regulating dependently respective braking forces, in response to the difference in the wheel speeds of the right and left driving wheels. CONSTITUTION:A wheel speed detecting means 1 for detecting the wheel speeds of the right and left driving wheels respectively, and an acceleration slip detecting means 2 for detecting the acceleration slip condition of at least one side of the right and left driving wheels at the time of start acceleration on the basis of the output signal of the former means are provided. Further, a wheel speed difference detecting means 3 for detecting the difference in the wheel speeds of the right and left driving wheels on the basis of the output signal of the wheel speed detecting means 1 is provided. And when acceleration slip is detected, a control signal is selectively output by a braking force regulating means 4 to a braking means 5 so that, if the difference in the wheel speeds of the right and left driving wheels is larger, the increase or decrease in the brake pressure is independently carried out in the right and left wheels; and if the difference in the wheel speeds is smaller, the increase or decrease in the brake pressure is dependently carried out in the right and left wheels.

4. 发明专利

JPS6444368A SLIP CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JPS6444368A
公开(公告)日：1989-02-16
申请号：JP19948887
申请日：1987-08-09
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： TANAKA HITOSHI , SUZUKI HIDEAKI , MINEGISHI HARUMASA , ISE SEIKI
IPC分类号： B60T8/175 , B60T8/172 , B60T8/1764 , B60T8/58 , B60T8/66
摘要： PURPOSE:To prevent the speed variation in the right and left driving wheels, when the target braking values for the right and left driving wheels each of which is independently calculated in correspondence to the slip condition are different each other, by correcting them so as to bring either of the right and left target values near to the larger target braking value. CONSTITUTION:A wheel speed detecting means M2 for detecting the rotating speed of the right and left wheels, and an acceleration slip detecting means M3 for detecting the acceleration slip condition of at least one side of the right and left driving wheels at the time of acceleration on the basis of the output signal of the former means are provided. And when acceleration slip is detected, the target braking values to be adjusted to the right and left driving wheels are right and left independently calculated in correspondence to the slip condition via a first and a second target braking value calculating means M4, M5. Next, respective target braking values thus calculated are compared by a comparison means M6, and when it is judged that the right and left target braking values are different each other, the braking force is corrected by a braking value correcting means M7 as much as a prescribed amount so that either of the right and left target braking values is brought near to the other target braking value.

5. 发明专利

JPS6483445A PROPULSION CONTROLLING DEVICE FOR VEHICLE 失效
公开(公告)号：JPS6483445A
公开(公告)日：1989-03-29
申请号：JP24132787
申请日：1987-09-26
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： FUJIMOTO SHIYUUSAKU , WATANABE TAKASHI , ISE SEIKI
IPC分类号： B60T8/175 , B60T8/58
摘要： PURPOSE:To prevent rapid change of rotation speed and secure stable running by controlling a braking device when slipping quantity at each drive wheel exceeds a first standard value, and controlling a drive torque control means when an averaged slipping quantity exceeds a second standard value. CONSTITUTION:Slipping quantity at each drive wheel and an averaged slipping quantity are calculated by a slipping quantity calculating means M4 based on the rotation speed at each drive wheel detected by drive wheel speed detecting means M2-L, M2-R and a standard speed based on the rotation speed of a follower wheel detected by a standard speed detecting means M3. When slipping quantity at each drive wheel exceeds a first standard value, braking devices M5-L, M5-R are driven by drive wheel speed control means M6-L, M6-R to control each drive wheel rotation speed. When an averaged slipping quantity exceeds a second standard value, a drive torque control means M3 controls a drive torque from a drive M7 to be transmitted to drive wheels M1-L, M1-R.

6. 发明专利

JPS6460462A ACCELERATING SLIP CONTROL DEVICE 失效
公开(公告)号：JPS6460462A
公开(公告)日：1989-03-07
申请号：JP21624487
申请日：1987-08-28
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： MIYAZAKI YUJI , ASAMI KEN , MINEGISHI HARUMASA , ISE SEIKI , KAMIYA KOJI
IPC分类号： B60T8/175 , B60T8/58 , B60T8/92
摘要： PURPOSE:To enhance reliability at the time of abnormality by stopping the supply of driving energy to braking means when a control signal is output from slip control means for controlling braking means to decrease an accelerating slip for more than a designated time outside a control range. CONSTITUTION:When an accelerating slip occurs during acceleration of a vehicle, braking means M1 is controlled by slip control means M2 to brake driving wheels of the vehicle and decrease the accelerating slip. Supervisory means M3 for detecting that a control signal of the slip control means M2 is output for more than a designated time outside the control range is provided separately from the slip control means M2. When the supervisory means M3 detects that the slip control means M2 outputs a control signal to the braking means M1 for more than a designated time outside the control range, the supply of driving energy to the braking means M1 is stopped by stopping means M4.

7. 发明专利

JPH03159857A ACCELERATIVE SLIP CONTROL DEVICE FOR CAR 失效
公开(公告)号：JPH03159857A
公开(公告)日：1991-07-09
申请号：JP30141189
申请日：1989-11-20
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： SAWADA MAMORU , ISE SEIKI
IPC分类号： B60T8/175 , B60T8/172 , B60T8/1764 , B60T8/58
摘要： PURPOSE:To reconcile a good accelerating performance with protection of the car braking system by altering the control specifications for a throttle to adjust the drive torque for the drive wheels in accordance with the left and right braking amounts accumulated independently the braking torque for the drive wheels. CONSTITUTION:To adjust the drive torque which is to be given to the drive wheels MW of a car, the amount of air suction to an internal combustion engine EG is altered by a throttle means C1. At this time, the acceleration slips generated on the drive wheels MW are sensed by a means C2 independently on the left and right wheels. According to the sensed acceleration slips, the brake torques given to the drive wheels are controlled by a means C3 independently on the left and right. According to the acceleration slips sensed, the throttle means C1 is drive controlled by a means C4. A means C5 calculates the left and right braking amounts accumulated independently the braking torques to be given to the drive wheels MW. The specifications for driving a throttle actuator due to the means C4 are altered by a means C6.

8. 发明专利

JPH03200461A VEHICULAR BRAKING PRESSURE CONTROL DEVICE 失效
公开(公告)号：JPH03200461A
公开(公告)日：1991-09-02
申请号：JP34356689
申请日：1989-12-28
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： SAITO SHIGERU , TAMURA KIMIO , ISE SEIKI , FUJITA KOZO
IPC分类号： B60T8/175 , B60T8/58
摘要： PURPOSE:To prevent the free running state generated at the control shifting time on the crossover road surface or the like by computing the controlled variable on the basis of the wheel speed excluding higher driving wheel speed during the traction control time of a vehicle so as to perform the anti-skid control of the vehicle. CONSTITUTION:Each wheel speed of a vehicle is detected by a means A. Traction control is performed by a means B to suppress the acceleration slip of each wheel on the basis of the detected wheel speed. Anti-skid control is also performed by a means C to suppress the locking of each wheel. In the means C in this case, a means D discriminates whether or not the means B is in control operation. The controlled variable is computed by a means E on the basis of each detected wheel speed at the non controlling time of the means B as well as on the basis of the wheel speed excluding at least the higher driving wheel speed at the controlling time of the means B. The braking pressure of each wheel is then controlled by a means F according to the computed controlled variable.

9. 发明专利

JPH01309832A ACCELERATION SLIP CONTROLLING APPARATUS FOR AUTOMOBILE 失效
公开(公告)号：JPH01309832A
公开(公告)日：1989-12-14
申请号：JP3890189
申请日：1989-02-17
申请人： TOYOTA MOTOR CORP
发明人： ISE SEIKI , FUJITA KOZO
IPC分类号： B60W10/04 , B60T8/175 , B60T8/58 , B60W10/06 , B60W10/18 , B60W10/188 , F02D29/02 , F02D41/04
摘要： PURPOSE:To improve a response of a slip control while a brake control and a throttle control are prevented from interfering each other by controlling the controlling amount of a throttle valve to correct toward throttle shutting corresponding to the controlling power of a braking apparatus by a brake control. CONSTITUTION:The title apparatus has an acceleration slip detecting means M2 to detect an acceleration slip of driving wheels based on a speed of the driving wheels by a driving wheel speed detecting means M1. When an acceleration slip is detected, a braking apparatus M3 of driving wheels M1 and a throttle valve M5 are controlled by an acceleration slip controlling means M6, and the driving wheel speed is thus converged to an aimed driving wheel speed. In this case, a controlling power detecting means M7 to detect the controlling power of the braking apparatus M3 is installed on the acceleration slip controlling means M6. The controlling amount of the throttle valve M5 is corrected toward shutting corresponding to a detected result of the controlling power by a correcting means M8, and as the controlling power becomes larger, the opened degree of the throttle is let be lower.

10. 发明专利

JPH08326808A COMPRESSION COIL SPRING 失效
公开(公告)号：JPH08326808A
公开(公告)日：1996-12-10
申请号：JP15835695
申请日：1995-05-31
申请人： CHUO HATSUJO KK , TOYOTA MOTOR CORP
发明人： YASUI MASAHIRO , IMAIZUMI TOSHIYUKI , KAMIYA SHUJI , MURAMATSU TATSUYA , KOMATSUBARA SHIGEKI , ISE SEIKI
IPC分类号： F16F1/06
摘要： PURPOSE: To reduce lateral force acting on a compression coil spring by inclining the upper side seat winding surface at an angle within a specific range with the lateral force operation direction as a center, in the case of a coil spring such as a suspension coil spring in whose oil axis direction compression load acts on. CONSTITUTION: In the case of a compression coil spring 1, a lower side winding end 2 having a lower side seat winding surface 4 is formed at a lower part, and an upper side winding end 3 having an upper side seat winding surface 5 is formed at an upper part. In this case, in order to reduce lateral force acting on the compression coil spring 1, the upper side seat winding surface 5 is formed by being inclined at an angle within the radian range of ±0.125±with a lateral force operation direction as a center. Also, its inclination angle is set within the range of a 0.06-0.15 radian. As a result, lateral force acting on a compression coil spring can be effectively reduced.

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