摘要:
A vehicle group control device for controlling the arrangement of vehicles within a vehicle group including plural vehicles, the vehicle group control device including: a periphery monitoring performance grasping unit which grasps a periphery monitoring performance of each vehicle constituting the vehicle group; and an arrangement determination unit which determines the arrangement of the vehicles within the vehicle group on the basis of the periphery monitoring performance of each vehicle. Accordingly, since the periphery monitoring performance of each vehicle within the vehicle group is grasped and the arrangement of the vehicles within the vehicle group can be determined on the basis of the periphery monitoring performance of each vehicle, it is possible to efficiently drive the entire vehicle group.
摘要:
In a hydraulic active suspension system, a plurality of actuators having working fluid chambers are provided corresponding to vehicle wheels. Each actuator is adapted to increase and decrease vehicle height as the results of the supply and the discharge of working fluid to and from its working fluid chamber, respectively. Supplying and discharging devices supply working fluid to and discharge from the working fluid chamber. Vehicle height sensors detect the vehicle heights at the locations corresponding to the vehicle wheels. A control device is further provided. The control device controls the supplying and discharging devices so that the pressure within the working fluid chamber in each actuator may be a value corresponding to the sum of a basic pressure determined according to the running conditions of the vehicle and a compensating pressure determined based upon the integral value of the difference between a standard vehicle height and an actual vehicle height. When the integral value of the difference is larger in magnitude than a predeterminate value, it is reduced in magnitude by the control device so as to prevent the control with the compensating pressure from overriding the control with the basic pressure.
摘要:
A traffic congestion detection apparatus includes a traveling information acquisition unit for acquiring traveling information relating to a traveling state of a vehicle, and a traveling zone determination unit for determining which one of at least three zones including a central zone of a congestion area the vehicle is traveling in, based on current traveling information acquired by the traveling information acquisition unit.
摘要:
Information for generating a target speed pattern is computed from information acquired from various sensors and a running mode input switch, so as to generate the target speed pattern (S16). A process for determining whether to form a vehicle group or not calculates the difference between the target vehicle pattern of the own vehicle and a target speed pattern of another vehicle or vehicle group obtained through inter-vehicle communication, so as to determine whether to form the vehicle group or not (S22, S28, S32). This can determine whether to run solo or form a vehicle group according to a driver's demand.
摘要:
A fluid pressure type active suspension in a vehicle such as an automobile having a four wheel steering means, including a fluid pressure type actuator provided between the vehicle body and each wheel, working fluid supply and exhaust means for supplying and exhausting a working fluid to and from each actuator, vehicle height detection means for detecting vehicle height of a portion of the vehicle body corresponding to each wheel relative to the wheel, and a control means for controlling the working fluid supply and exhaust means according to control parameters including a vehicle height detected by the vehicle height detection means, wherein the control means is adapted to modify the control of the working fluid supply and exhaust means in accordance with whether a front to rear wheel steering angle ratio of the four wheel steering means is in a same phase region or an opposite phase region so that the vehicle height is controlled to be higher or lower or the rolling control is suppressed less or more according to whether the front to rear wheel steering angle ratio is in the opposite phase region or in the same phase region, respectively.
摘要:
A suspension pressure control system applies a pressure which is proportional to a current level supplied to a solenoid of a pressure control valve to a shock absorber associated with a suspension from the valve through a cut valve, which cuts off a fluid path from the pressure control valve to the shock absorber when a line pressure is below a predetermined value and communicates the fluid path when the line pressure exceeds the predetermined value. An electronic controller controls the current level to maintain an attitude of a vehicle substantially constant in spite of any change of longitudinal and lateral acceleration, which are detected by acceleration sensors. In order to prevent an abrupt or abnormal change of the pressure of the shock absorber at an initiation of the pressure control of the controller when the vehicle is parking on a slope, the controller initiates the pressure control before the cut valve communicates the fluid path.
摘要:
A pressure control valve delivers a pressure which is proportional to a current level chosen to energize a solenoid therein to a shock absorber of a suspension. A spool in the valve has an annular groove for communicating an output port to a high pressure port or a low pressure port selectively. There are conical surfaces or inclined surfaces at edges of lands adjacent to the groove, which incline from annular surfaces of the lands toward the bottom of the groove. The inclined surfaces slow down a change of the flow rate from the high pressure port to the output port and from the output port to the low pressure port when the annular groove communicates with the high pressure port and the low pressure port respectively.
摘要:
A vehicle control device includes: a road-to-vehicle communication device which acquires information regarding the volume of traffic in a predetermined section on a road where a vehicle travels and which transmits the traffic volume information to a determination section; a deceleration acquisition section which acquires deceleration of a vehicle in front in the predetermined section and transmits information regarding the deceleration to the determination section; the determination section which determines whether or not a lane change is necessary on the basis of the traffic volume information acquired by the road-to-vehicle communication device and the deceleration acquired by the deceleration acquisition section; and an instruction section which instructs at least either the host vehicle or a vehicle behind to change lane when the determination section determines that a lane change is necessary. Therefore, it is possible to provide a vehicle control device capable of suppressing the occurrence of a traffic jam.
摘要:
A traffic congestion detection apparatus includes a traveling information acquisition unit for acquiring traveling information relating to a traveling state of a vehicle, and a traveling zone determination unit for determining which one of at least three zones including a central zone of a congestion area the vehicle is traveling in, based on current traveling information acquired by the traveling information acquisition unit.
摘要:
The vehicular deceleration control apparatus applies deceleration to a vehicle in accordance with the amount of operation of an accelerator. The deceleration control apparatus determines whether there is an abnormality based on a deviation between a set target deceleration and a detected actual deceleration. If an abnormality of a system is detected, the apparatus discontinues the control, and transmits a system abnormality signal to indicate the abnormality to other systems and to an operator.