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公开(公告)号：JP2002178899A
公开(公告)日：2002-06-26
申请号：JP2000381463
申请日：2000-12-15
Applicant: TOYOTA MOTOR CORP
Inventor： SOGA MASAYUKI , ONUMA YUTAKA
Abstract: PROBLEM TO BE SOLVED: To the most suitably presume the brake requirement amount of a driver corresponding to a determination whether or not an inconsistency exists between detection values of respective detection means and to appropriately control a braking force of each wheel corresponding to a brake operation of the driver. SOLUTION: The brake control device has high pressure liquid supply source 36, 38 and cutting-off devices 24F, 24R for cutting-off a communication of a master cylinder 14 with wheel cylinders 22FL-22RR. It is determined whether or not an inconsistency exists between detection values Pm1, Pm2 of two pressure sensors 66, 68 for detecting a pressure in the master cylinder 14 and a detection value St of a stroke sensor 70 for detecting a step-in stroke of a brake pedal 12 (S20, 30, 50, 90, 110). A final target deceleration Gt is operated based on the detection values being not inconsistent with each other (S40, 60-80, 100, 120, 140-170) and the braking force of each wheel is controlled based on the final target deceleration Gt (S180, 190).
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公开(公告)号：JP2001177915A
公开(公告)日：2001-06-29
申请号：JP35237699
申请日：1999-12-10
Applicant: TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
Inventor： SOGA MASAYUKI , OBUCHI HIROSHI , NIWA SATORU , SAKAMOTO JUNICHI , HATTORI YOSHIKAZU
Abstract: PROBLEM TO BE SOLVED: To provide an energy transferring apparatus which performs energy transfer smoothly, between energy supplying facilities and a mobile in the course of moving. SOLUTION: Since the energy transferring apparatus of this invention supplies energy through energy supplying facilities 2, and obtains the supplied energy with the mobile 1 in the course of moving, the apparatus is provided with posture controlling means 11, 17, 27 for controlling the posture of the mobile when the energy is transferred.
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公开(公告)号：JP2000313323A
公开(公告)日：2000-11-14
申请号：JP12568499
申请日：1999-05-06
Applicant: TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
Inventor： SOGA MASAYUKI , HATTORI YOSHIKAZU
Abstract: PROBLEM TO BE SOLVED: To prevent a secondary collision when a vehicle collides, and to satisfy a will to run if a driver has the will. SOLUTION: When a collision is detected (S40-60), an affirmative judgement is performed at any of steps 40-60 at the time of a vehicle collision, and a driver does not have a will to run while a vehicle having a low speed (S120, 130), a high braking force is automatically given to a wheel (S140, 210) by controlling a wheel cylinder pressure Pi of each wheel in a pre-set desired value Ptc. When the driver has a will to run or the vehicle has a high speed, the braking force is not given to the vehicle by setting the desired wheel cylinder pressure Pti to be 0 for securing a situation so as to be capable of running the vehicle.
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公开(公告)号：JP2000177570A
公开(公告)日：2000-06-27
申请号：JP36290698
申请日：1998-12-21
Applicant: TOYOTA MOTOR CORP
Inventor： SOGA MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To judge the abnormality of a power source without exerting adverse influence on a vehicle. SOLUTION: A motor-driven pump is provided to supply a driving current from a battery, and braking force of respective wheels is controlled by a high pressure operating liquid from the motor-driven pump. Whether or not a vehicle is in a stopping state is discriminated (S120), and when the vehicle is in a stopping state, the motor-driven pump is driven for a prescribed time To, pressure in a wheel cylinder of a left front wheel is increased, and pressure in a wheel cylinder of a right rear wheel is reduced (S150) to discriminate whether or not battery voltage is abnormal on the basis of battery voltage Ve at that time (S170). When the battery voltage is abnormal, delivery pressure of the motor-driven pump and the boosting gradient are limited by reducing target voltage Vpt and a target current Ipt according to a voltage drop degree of a battery to reduce electric power consumption by the motor-driven pump (S210 to 230).
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公开(公告)号：JPH11301463A
公开(公告)日：1999-11-02
申请号：JP12814298
申请日：1998-04-22
Applicant: TOYOTA MOTOR CORP
Inventor： ONUMA YUTAKA , SAKAMOTO JUNICHI , SOGA MASAYUKI
IPC: B60T17/22
Abstract: PROBLEM TO BE SOLVED: To specify abnormal part which can be specified by a prior abnormality judging device in a brake force control device. SOLUTION: The device has a master cylinder pressure sensor, two stroke sensors, a wheel cylinder pressure sensor, and an electronic control device. The electronic control device, when difference between detected values Sp1, Sp2 by the two stroke sensors is within a given value, and detected values by the two stroke sensors are less than a standard value based on a detected value Pm by the master cylinder pressure sensor (S90), opens an opening/closing valve and connects a master cylinder with a wheel cylinder (S100), compares the detected value Pm with a detected value Pfr by the wheel cylinder sensor, and therefore, whether the master cylinder pressure sensor is abnormal or stroke of a brake pedal is abnormal is specified (S120, S130, S160).
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Patent Agency Ranking
公开(公告)号：JPH11240437A
公开(公告)日：1999-09-07
申请号：JP5885198
申请日：1998-02-24
Applicant: TOYOTA MOTOR CORP
Inventor： SOGA MASAYUKI
IPC: B60T8/26 , B60T8/1766 , B60T8/58 , B60T8/66
Abstract: PROBLEM TO BE SOLVED: To start required braking force distribution control without delay or not prematurely. SOLUTION: In this unit, a wheel speed difference ΔVwe between front and rear wheels is calculated, when a vehicle speed of a front wheel that is an idler wheel when vehicle is not braked, substantially becomes a peak value Vmfmax (S20 to 100). A slip amount Slip of a rear wheel relative to the front wheel is calculated when the vehicle is braked (S110). When the slip amount Slip is at or more than a reference value A+ΔVwe, and a deceleration DVwr of the rear wheel is at or more than a reference value (positive constant)(S120 to 140), a braking force distribution between the front and rear wheels is controlled by limiting the braking force of the rear wheel (S160). Since the reference value A+ΔVwe for determining the slip amount Slip includes the difference in speed between the front and rear wheels, the greater the wheel speed difference ΔVwe is, the greater the calculated reference value is.
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公开(公告)号：JPH01101215A
公开(公告)日：1989-04-19
申请号：JP25989487
申请日：1987-10-15
Applicant: TOYOTA MOTOR CORP , NIPPON DENSO CO
Inventor： SOGA MASAYUKI , IKEMOTO HIROYUKI , ICHIMARU HIDENORI , ONUMA TOSHIO , YASUIKE OSAMU
IPC: B60G21/00 , B60G17/015 , B60G17/027 , B60G21/05 , B60G21/055
Abstract: PURPOSE:To enhance controlability by outputting defined control instructions with high precedence based on a vehicle condition detected result to correspond ing means in the following order, basic performance compensation instructions, control instructions at the time of abnormal traveling and stabilizer characteris tic optimization instructions. CONSTITUTION:The target torsion quantity of a stabilizer is decided by vehicle condition detected by a vehicle condition detecting means M2, and a torsion quantity change is outputted to an adjusting means M1 so as to change torsion quantity. On the other hand, a precedence means M7 judges whether the vehicle condition comes under a basic performance compensation condition, a control condition at the time of abnormal traveling and a stabilizer characteristic optimization condition, and when it comes under some of them, instructions with high precedence are outputted to respective means M4-M6 in order of precedence decide previously, basic performance compensation instructions, control instruction at the time of abnormal traveling and stabilizer characteristic optimization instructions. Respective means M4-M6 correct the target torsion quantity through the adjusting means M1. With this arrangement, controlability can be enhanced.
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公开(公告)号：JPS6467412A
公开(公告)日：1989-03-14
申请号：JP22351787
申请日：1987-09-07
Applicant: TOYOTA MOTOR CORP , NIPPON DENSO CO
Inventor： YASUIKE OSAMU , IKEMOTO HIROYUKI , ICHIMARU HIDENORI , ONUMA TOSHIO , SOGA MASAYUKI
IPC: B60G21/04 , B60G17/015 , B60G17/027 , B60G21/055
Abstract: PURPOSE:To reliably prevent the generation of reverse rolling by determining couter-steering of a vehicle when a direction of an estimated lateral acceleration of the vehicle differs from that of a detected lateral acceleration, and retaining a torsional quantity of a stabilizer to a predetermined value. CONSTITUTION:Means M1 adjusts a torsional quantity of a stabilizer according to an external command. Means M2 and M3 detect a vehicle speed and a steering angle, respectively. Means M4 outputs to the means M1 a command for changing the torsional quantity to a target torsional quantity decided according to the vehicle speed and the steering angle. Means M5 detects a direction of a lateral acceleration of a vehicle. Means M6 calculates a direction of an estimated lateral acceleration of the vehicle according to the vehicle speed and the steering angle. Means M7 determines whether or not the direction of the estimated lateral acceleration differs from that of the detected lateral acceleration. If it is determined that both the directions differ from each other, means M8 outputs to the means M1 a command for retaining the torsional quantity of the stabilizer to a predetermined value.
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公开(公告)号：JPS6467411A
公开(公告)日：1989-03-14
申请号：JP22351687
申请日：1987-09-07
Applicant: TOYOTA MOTOR CORP , NIPPON DENSO CO
Inventor： SOGA MASAYUKI , IKEMOTO HIROYUKI , ICHIMARU HIDENORI , ONUMA TOSHIO , YASUIKE OSAMU
IPC: B60G21/04 , B60G17/015 , B60G17/027 , B60G21/055
Abstract: PURPOSE:To reliably prevent the generation of rolling by stopping a change of a torsional quantity of a stabilizer to a target torsional quantity decided inaccurately when a difference between an estimated value and a detected value of a lateral acceleration of a vehicle is not less than a predetermined value. CONSTITUTION:Means M1 adjusts a torsional quantity of a stabilizer according to an external command. Means M2 and M3 detect a vehicle speed and a steering angle, respectively. Means M4 outputs to the means M1 a command for changing the torsional quantity to a target torsional quantity decided according to the vehicle speed and the steering angle. Means M5 detects a lateral acceleration of a vehicle. Means M6 calculates an estimated lateral acceleration of the vehicle according to the vehicle speed and the steering angle. Means M7 determines whether or not a difference between the estimated lateral acceleration and the detected lateral acceleration is not less than a predetermined value. If it is determined that the difference is not less than the predetermined value, means M8 outputs to the means M1 a command for stopping the change of the torsional quantity to the target torsional quantity.
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公开(公告)号：JPS6460414A
公开(公告)日：1989-03-07
申请号：JP21709887
申请日：1987-08-31
Applicant: TOYOTA MOTOR CORP , NIPPON DENSO CO
Inventor： SOGA MASAYUKI , IKEMOTO HIROYUKI , ICHIMARU HIDENORI , ONUMA TOSHIO , YASUIKE OSAMU
IPC: B60G21/02 , B60G17/015 , B60G17/027 , B60G21/055
Abstract: PURPOSE:To always properly control a stabilizer by interrupting a change of the stabilizer into its target torsional amount from when a car speed generates its fluctuating rate to a predetermined value or more to when a vehicle is placed in a running condition of low speed or deceleration further with a steering angle in a predetermined value or less. CONSTITUTION:A means M1 adjusts a torsional amount of a stabilizer. While a means M2 detects a car speed further a means M3 detects a steering angle. A means M4 outputs a changing instruction to a target torsional amount determined being based on the car speed and the steering angle, controlling the means M1. In this device, when a fluctuating rate of the car speed detected in a means M5 is decided to be in a predetermined value or more by a means M6, the instruction, output to the means M1 from the means M4, is interrupted in a means M7. On the contrary, when a means M8 decides the car speed to be placed in a running condition of low speed or deceleration further when a means M9 decides the steering angle to be in a predetermined value or less, a means M10 releases the interruption instruction of the means M7 to be reset.
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