Abstract: To provide a headway control system, in which a congestion following processing can be started by the same operation as in ordinary driving. An arrangement is provided that lets a following control unit 10 to start a control to follow a preceding vehicle on condition that a characteristic value, which is produced in a host vehicle when a driver starts moving the host vehicle, is detected in congested traffic. Acceleration or a vehicle speed may be used as the characteristic value. Another possible arrangement is to start the following control on condition that a variation in an engine of the host vehicle, which is generated in the host vehicle when the driver operates to start moving the host vehicle, is detected in congested traffic.

Abstract: A brake device includes an actuator which is provided on a wheel side of a vehicle having a suspension, the actuator generates a braking force by being electrically driven. A drive controller is also provided for receiving a signal regarding the braking force from a vehicle motion controller and sensors, and driving the actuator accordingly. To reduce the number of high cost bending wires necessary to communicate between the sensors, the drive controller and the vehicle motion controller, the drive controller and the sensors are attached to the actuator side (unspring-mass).

Abstract: A vehicle cruise control apparatus is provided for controlling a vehicle to run at a set speed desired by a driver. The apparatus stores a state in which the driver inputs a set speed (for example, the number of times the driver inputs the set speeds and a period at which the driver inputs the set speeds), and calculates a target acceleration/deceleration from the input state and a vehicle speed deviation (calculated by subtracting the actual vehicle speed from the set speed).

Abstract: A power supplying apparatus and method for a vehicle are disclosed. A plurality of loads and a plurality of power supplies are connected to each other in such a manner that one of the loads is connected to a plurality of the power supplies, and one of the plurality of the power supplies is connected to a plurality of the loads. Further, the power supplies and the loads are connected through a breaker unit for electrically disconnecting the circuit under predetermined conditions and a unidirectional conductive unit for allowing the current to flow in one direction and blocking the current in the opposite direction.

Abstract: An electrically driven brake device includes a plurality of brake actuators for generating braking force when driven electrically, a power supply source for storing electric energy and supplying power to the brake actuators, a power source line for connecting the power supply source and the brake actuators, and a power breaker at a position of the power source line at which the brake actuators can be insulated and separated into at least two systems.

Abstract: An electrically driven brake device includes a plurality of brake actuators for generating braking force when driven electrically, a power supply source for storing electric energy and supplying power to the brake actuators, a power source line for connecting the power supply source and the brake actuators, and a power breaker at a position of the power source line at which the brake actuators can be insulated and separated into at least two systems.

Abstract: A brake device includes an actuator which is provided on a wheel side of a vehicle having a suspension, the actuator generates a braking force by being electrically driven. A drive controller is also provided for receiving a signal regarding the braking force from a vehicle motion controller and sensors, and driving the actuator accordingly. To reduce the number of high cost bending wires necessary to communicate between the sensors, the drive controller and the vehicle motion controller, the drive controller and the sensors are attached to the actuator side (unspring-mass) and the drive controllercommunicates with the vehicle motion controller provided on the vehicle body side (spring-mass) of the vehicle by bidirectional multiplex communication.

Abstract: In a vehicle to vehicle distance control device when a headway distance between a controlled vehicle in which the device is provided and a forward vehicle approaches or falls below a predetermined value a control unit controls the vehicle speed of the controlled vehicle so as to keep the headway distance at a predetermined value. When the device becomes unable to detect the presence of a forward vehicle, a constant speed control is provided for the controlled vehicle using either the controlled vehicle speed before the device became unable to detect the forward vehicle or a corrected vehicle speeds until an accelerator is operated. After the accelerator is operated, speed control is performed using a vehicle speed set by a driver of the vehicle.

Abstract: A power-supply unit for automobiles, connected to an electrically-driven brake device which generates braking forces by being electrically driven, an electric generator capable of generating braking forces for a vehicle by power generation, and a storage device for storing electric power, the power-supply unit comprising a first power supply line for connecting the electric generator with the storage device, a second power supply line for connecting the first power supply line with the electrically-driven brake device, and power-source connection means provided on the second power supply line and have interrupting function.

Abstract: An exhaust gas purification control apparatus is used for an engine provided with a NOx catalyst absorbing or adsorbing NOx when an air fuel ratio of exhaust gas from the engine is lean and reducing the absorbed or adsorbed NOx when the exhaust gas is at the stoichiometric air fuel ratio or richer in fuel, and an exhaust sensor arranged upstream or downstream of the NOx catalyst, and characterized in that thed exhaust gas purification control apparatus comprises a sulphur component calculating means for calculating or estimating a quantity of sulphur components in the exhaust gas and an operation mode changing means for changing an air fuel ratio of the engine on the basis of the detected value of the sulphur components, and the calculated or estimated value of sulphur components is a prescribed value or more, the operation changing means decreases frequencies of lean mode operation of the engine, shortens continuation time of the lean mode operation or prohibits the lean mode operation.

Abstract: In a vehicular control device, it is necessary to measure or calculate six physical quantities-forward-reverse speed, left-right speed, vertical speed, pitch angle, roll angle, and angle of sideslip-representing vehicular movement and to control the braking force of each wheel and/or the damping coefficient of each suspension shock absorber in order to further shorten braking distance particularly at the time of braking and to prevent spin at that time. In this case, it is necessary to furnish sensors to measure speed and angle directly. In the present invention, four radar sensors are used in order to directly measure the forward-reverse speed and the left-right speed. Also, the vertical speed, the pitch angle, the roll angle, and the angle of sideslip are indirectly measured from the output of the radar sensors.

Abstract: An apparatus for purifying and controlling exhaust gases having NOx adsorption catalyst in the exhaust gas duct therein, and conducting exhaust gas purification by adsorbing or capturing NOx in the oxidative atmosphere of lean exhaust gas, producing a reductive atmosphere and regenerating the adsorption catalyst, characterized by carrying out a reduction treatment of NOx on the basis of a calculated quantity of adsorbed NOx, said calculated quantity of adsorbed NOx being obtained by subtracting the quantity of NOx directly reduced to N2 from the total NOx in exhaust gas, can maintain the NOx purification rate in the lean burn exhaust gas of internal combustion engine always at a prescribed level or above and thereby lowering the quantity of discharged harmful exhaust gas.

Abstract: When a vehicle is suddenly stopped by turning off an ignition key switch on a way of a slope road, a braking force maintaining control is not preformed, and it often occurs that the vehicle moves down along the slope road. To prevent such occurrence, an electro-mechanical braking device for maintaining the braking force is provided so that the vehicle is parked securely. The electro-mechanical braking device includes a parking brake mechanism for maintaining the brake force even when an ignition key switch (power supply switch) of the vehicle is turned off. When the power supply switch (ignition key switch) of the vehicle is turned off with a braking pedal being stroked or a braking operation signal being present, the parking-brake mechanism is activated (the brake force is maintained).

Abstract: An on-vehicle breakdown-warning report system is disclosed. an occurrence of break-down is detected and judged based on a signal in an electronic control system installed on a control apparatus for an engine ignition system, a charging system, an engine fuel system, a engine cooling system, a power transmission system, and an oil lubricating system of an automobile or a diagnosis display system; and a diagnostic data is sent to an information terminal device of a diagnosis and maintenance agency or a service company having a diagnosis and maintenance agency as a contents information by using an on-vehicle mobile communication apparatus, and an action for an emergency measures and a maintenance schedule is asked.

Abstract: A power supply system for a vehicle is provided which is able to supply an electric brake apparatus with necessary power even if an abnormal condition occurs in a battery or a conductor which is connected to the electric brake apparatus. A relay control unit 12 normally brings a relay 11 in a state in which its input terminal is connected to an A terminal 13. This causes a generator 50 or main battery 20 to supply an electric brake apparatus 100 with power via first and second power supply lines 40 and 41 and charges an auxiliary battery 21. If an abnormal condition occurs at main and auxiliary batteries 20 and 21, main and auxiliary power supply lines 30 and 31, first and second power supply lines 40 and 41, the relay control unit 12 brings the relay 21 into a state in which its input terminal is connected to A or B terminal 13 or 14 in response to the abnormal condition.

Abstract: It is an object of the present invention to accurately extract all failures occurring in a unit as hard signals and use the hard signals to completely cut off the faulty unit's communications for the purpose of maintaining the communications among the other units.

Abstract: A power supply system for a vehicle is provided which is able to supply an electric brake apparatus with necessary power even if an abnormal condition occurs in a battery or a conductor which is connected to the electric brake apparatus. A relay control unit 12 normally brings a relay 11 in a state in which its input terminal is connected to an A terminal 13. This causes a generator 50 or main battery 20 to supply an electric brake apparatus 100 with power via first and second power supply lines 40 and 41 and charges an auxiliary battery 21. If an abnormal condition occurs at main and auxiliary batteries 20 and 21, main and auxiliary power supply lines 30 and 31, first and second power supply lines 40 and 41, the relay control unit 12 brings the relay 21 into a state in which its input terminal is connected to A or B terminal 13 or 14 in response to the abnormal condition.

Abstract: The present invention provides a protective maintenance service system capable of raising an alarm for the replacement of a part when the degradation of an inspection required part reaches the prescribed criteria of replacement. Of the respective inspection required parts stored in the vehicle inspection parts database for the respective vehicles stored in the vehicle database provided by a business unit in advance, the time of part replacement is determined on the basis of the data detected by a part condition sensor for a part having a part condition sensor, and on the basis of the time, which is obtained from the service life compensated with an actual service environment, for a part without a part condition sensor.

Abstract: The solenoid current increases at low temperatures and decreases at high temperatures because the modulus of elasticity of an elastically deformable valve body and the slide resistance of an elastically deformable seal member vary with temperatures. Therefore the solenoid current for opening the valve mechanism from a closed position is required to be changed with low and high temperatures. To supply the solenoid current necessary for opening the valve mechanism without directly measuring the temperature, the solenoid current (the boost starting current leaning value) indicated when the pressure varies with the opening of the valve mechanism is recorded at the time of pressure-increasing, and thereafter when the valve mechanism is opened again after the closing of the valve mechanism, the solenoid current computed on the basis of the pressure-increase starting current learning value thus recorded is supplied.

Abstract: A vehicle cruise control apparatus is provided for controlling a vehicle to run at a set speed desired by a driver. The apparatus stores a state in which the driver inputs a set speed (for example, the number of times the driver inputs the set speeds and a period at which the driver inputs the set speeds), and calculates a target acceleration/deceleration from the input state and a vehicle speed deviation (calculated by subtracting the actual vehicle speed from the set speed).