CONTROL DEVICE OF VEHICLE

• Main Authors: TSUMURA KAZUNORI, TAKAHARA YASUNORI, UMEZU DAISUKE, FUJISHITA HIROFUMI
• Format: Patent
• Language: English; Japanese
• Published: 31.10.2019
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

To secure the stability of steering at a turn by performing vehicle yaw control even to an increase of an operation frequency of a brake device, in a control device of a vehicle for adding a yaw moment to the vehicle.SOLUTION: A control device of a vehicle comprises: a steering device including a steering wheel 6 or the like; a brake device 16 which can add different brake forces to left and right wheels; a brake control system 18 which can adjust the brake forces of the brake device 16; and a PCM 14 including a processor or the like. The PCM 14 performs vehicle yaw control for adding a yaw moment which is reverse to a yaw rate generated in a vehicle to the vehicle by comparing a value corresponding to a return operation of the steering device and a prescribed threshold, and when the number of times of actual accumulative frequencies of the vehicle yaw control is large, performs at least either of a change of the threshold so as to decrease an intervention frequency of the vehicle yaw control, and the reduction of the yaw moment added by the vehicle yaw control.SELECTED DRAWING: Figure 6 【課題】ヨーモーメントを車両に付加する車両ヨー制御を行う車両の制御装置において、ブレーキ装置の作動頻度の増加に対しても車両ヨー制御による旋回時の操安性能を確保する。【解決手段】車両の制御装置は、ステアリングホイール６などを含む操舵装置と、左右の車輪に異なる制動力を付与可能なブレーキ装置１６と、このブレーキ装置１６の制動力を調整可能なブレーキ制御システム１８と、プロセッサなどを含むＰＣＭ１４と、を備える。ＰＣＭ１４は、操舵装置の戻し操作に応じた値と所定の閾値とを比較して、車両に発生しているヨーレートとは逆回りのヨーモーメントを車両に付加する車両ヨー制御を実行し、車両ヨー制御の実行累積回数が多いときに、車両ヨー制御の介入頻度が低くなるように閾値を変更すること、及び、車両ヨー制御により付加するヨーモーメントを小さくすること、のうちの少なくとも一方を実行する。【選択図】図６