PURPOSE: To make a driver easily frontward ahead a corber, by making an all- wheel-steering gear so as to change a car body attitude in order to cause it turn to the inner side of a turning direction when the car accelerates at the latter half cornering.
CONSTITUTION: A computer 12 receives a detection signal out of a detection sensor 13 for body's lateral motion such as a lateral acceleration sensor, a yaw rate sensor or the like, and feeds a control signal commensurate to this signal to a rear wheel steering survo actuator 8, performing the rear wheel turning steerage required. If a car is in a state of acceleration when front wheels are turn- steered, it is detected by an acceleration sensor 14 and data d3 is inputted into the computer. Inside the computer 12, an operational process (e) takes place on the basis of the front data (d) whereby control information d4 is secured. And, it is subtracted from rear wheel turn-steerage information d2 by a subtraction process, and (±d2-d4) is fed to the servo actuator 8 and thereby a car body attitude is made to be headed toward the inner side of a turning direction.
SANO SHIYOUICHI
FURUKAWA OSAMU
| JPS5760974A | 1982-04-13 |