公开(公告)号：JPS6460413A

公开(公告)日：1989-03-07

申请号：JP21709787

申请日：1987-08-31

Applicant: TOYOTA MOTOR CORP ,  NIPPON DENSO CO

Inventor： YASUIKE OSAMU ,  ONUMA TOSHIO ,  SOGA MASAYUKI ,  IKEMOTO HIROYUKI ,  ICHIMARU HIDENORI

IPC: B60G21/02 ,  B60G17/015 ,  B60G17/027 ,  B60G21/055

Abstract: PURPOSE:To always properly control a stabilizer by deciding a vehicle to be placed in a low friction coefficient road surface running condition and correcting a target torsional amount of the stabilizer to be decreased when ratio of estimated lateral acceleration to detected lateral acceleration exceeds a predetermined value. CONSTITUTION:A means M1 adjusts a torsional amount of a stabilizer in accordance with an instruction from the outside. While a means M2 detects a car speed further a means M3 detects a steering angle. A means M4 outputs an instruction changing into a target torsional amount determined being based on the car speed and the steering angle, controlling the means M1. In this device, a means M5 detects lateral acceleration of a vehicle. While a means M6 calculates estimated lateral acceleration of the vehicle being based on the car speed and the steering angle. Further a means M7 decides the vehicle for whether or not it is placed in a low friction coefficient road surface running condition with ratio of the lateral acceleration to the estimated lateral acceleration exceeding a predetermined value. When the vehicle is placed in the low friction coefficient road surface running condition, a means M8 corrects the target torsional amount to be decreased.

公开(公告)号：JPS6460412A

公开(公告)日：1989-03-07

申请号：JP21709687

申请日：1987-08-31

Applicant: TOYOTA MOTOR CORP ,  NIPPON DENSO CO

Inventor： SOGA MASAYUKI ,  ONUMA TOSHIO ,  YASUIKE OSAMU ,  IKEMOTO HIROYUKI ,  ICHIMARU HIDENORI

IPC: B60G21/02 ,  B60G17/015 ,  B60G17/027 ,  B60G21/055

Abstract: PURPOSE:To always properly control a stabilizer by deciding a detected car speed not to accurately reflect the actual car speed and controlling the stabilizer to be suspended in its change into the target torsional amount when a change rate of the car speed is decided to be in a predetermined value or more. CONSTITUTION:A means M1 adjust a stabilizer in its torsional amount in accordance with an instruction from the outside. While a means M2 detects a car speed further a means M3 detects a steering angle. A means M4 outputs a changing instruction to the target torsional amount determined being based on the car speed and the steering angle, controlling the means M1. In this device, a means M5 calculates a change rate of the car speed. While a means M6 decides whether or not the change rate of the car speed is in a predetermined value or more. When the change rate of the car speed is decided to be in the predetermined value or more, an instruction, output from the means M4 to the means M1, is interrupted by a means M7. In this way, for instance, excessively increasing the torsional amount of the stabilizer, rolling is prevented from being generated.

公开(公告)号：JPS6364870A

公开(公告)日：1988-03-23

申请号：JP21050086

申请日：1986-09-06

Applicant: TOYOTA MOTOR CORP

Inventor： SOGA MASAYUKI ,  KUBOTA YUZO

IPC: B62D6/02

Abstract: PURPOSE:To decrease a feeling of fatigue of the driver caused by high speed running for a long time, by calculating the running time of a vehicle separately from its running speed and reducing the rigidity in a steering system in no relation to the vehicle running speed when the running time exceeds the fixed time. CONSTITUTION:A solenoid valve 34 is built in a drain circuit 35 of a hydraulic pressure reaction force mechanism 15, and a valve opening area changes so as to be controlled in accordance with an electric current supplied to the solenoid valve 34. A control circuit 50, which controls the current supplied to the solenoid valve 34, is formed so as to input a signal from a car speed sensor 40, on-off signal of an ignition switch 41, clock signal and a mode selecting signal. The control circuit 50 controls a flow of the current in the solenoid valve 34 on the basis of each signal as described in the above.