Abstract: To suppress temperature rises of an electric power steering device provided at a vehicle equipped with a diff lock device and to restrict the operation of the electric power steering device at times other than during diff locking. An electric power steering device that is coupled to a steering shaft fitted with handlebars at an upper end and that generates auxiliary force that supplements the steering force, and a diff lock unit that selects a differential state and a non-differential state (diff lock) of a differential device are provided. An ECU reduces the maximum value of the auxiliary force generated by the electric power steering device to a prescribed limit value when the diff lock is detected by the diff lock sensor is also provided. The ECU releases limiting of the maximum value of the auxiliary force when release of the diff lock is detected by the diff lock sensor.

Abstract: A wearable air bag device formed by defining air inflating chambers in a jacket of a rider of a vehicle. An ECU, a battery, a rider separation detecting part, a main switch and a warning device are incorporated into the jacket. A wire is connected to a vehicle via a connecting terminal. When a rider who wears the jacket is separated from the vehicle, the wire which is connected to the vehicle is extended and a reel is rotated. Upon detecting a rotational angular speed of the reel, the ECU determines that the rider is separated when the rotational angular speed is large. Upon detection of the separation of the rider, ECU develops an air bag by operating an inflator.

Abstract: A removable steering angle sensor for a motor-driven power steering apparatus for use in a vehicle intended for rough road use. The handlebar of the vehicle is disposed on an upper portion of a steering shaft, and a motor-driven power steering apparatus, including a power assist portion as an actuator unit, is disposed in a middle portion of the steering shaft. The steering angle sensor for detecting a steering angle is disposed on one end of the steering shaft, or more specifically, on a lower end portion of an output shaft, or a leading end portion of an output shaft. During maintenance, this arrangement provides for easy removal and installation of the steering angle sensor.

Abstract: An air bag, a control device and a rider or operator removal detecting part are disposed in an operator's jacket. An air bag device body includes air inflating chambers, an ECU, a battery, a radio receiver, a main switch and a warning device incorporated into the jacket. In response to a synchronizing signal transmitted from a vehicle-body-side radio transmitter, a vehicle-body-side electric wave signal generating part and a rider-side reference waveform signal generating part, respectively, generate an electric wave signal and a comparison signal in a synchronized state with a signal comparing part determining a phase difference between both signals. When a delay quantity or a change of the delay quantity of the electric wave signal from the electric wave signal generating part is increased, the ECU detects a removal of a rider for informing an air bag drive part.

Abstract: To prevent an air bag from being operated by mere inclination when the vehicle body does not fall down, that is, at the time of handling during a banking operation or the like. An air bag and a removal detecting part for detecting a rider removal from a vehicle body are incorporated in a rider jacket. An inclination sensor for detecting an inclination of the vehicle body of a motorcycle is provided. An angle acceleration calculating part for calculating the inclination angle acceleration of the vehicle body calculates the inclination angle acceleration based on a plurality of detected inclination angles. When the state of the vehicle body falls within the air bag operable range, an air bag deploying instruction is outputted. The air bag deploying instruction is supplied to the air bag when the rider removal from the vehicle body is not detected by the removal detecting part.

Abstract: An air bag, a control device and a rider or operator removal detecting part are disposed in an operator's jacket. An air bag device body includes air inflating chambers, an ECU, a battery, a radio receiver, a main switch and a warning device incorporated into the jacket. In response to a synchronizing signal transmitted from a vehicle-body-side radio transmitter, a vehicle-body-side electric wave signal generating part and a rider-side reference waveform signal generating part, respectively, generate an electric wave signal and a comparison signal in a synchronized state with a signal comparing part determining a phase difference between both signals. When a delay quantity or a change of the delay quantity of the electric wave signal from the electric wave signal generating part is increased, the ECU detects a removal of a rider for informing an air bag drive part.

Abstract: To prevent an air bag from being operated by mere inclination when the vehicle body does not fall down, that is, at the time of handling during a banking operation or the like. An air bag and a removal detecting part for detecting a rider removal from a vehicle body are incorporated in a rider jacket. An inclination sensor for detecting an inclination of the vehicle body of a motorcycle is provided. An angle acceleration calculating part for calculating the inclination angle acceleration of the vehicle body calculates the inclination angle acceleration based on a plurality of detected inclination angles. When the state of the vehicle body falls within the air bag operable range, an air bag deploying instruction is outputted. The air bag deploying instruction is supplied to the air bag when the rider removal from the vehicle body is not detected by the removal detecting part.

Abstract: A wearable air bag device formed by defining air inflating chambers in a jacket of a rider of a vehicle. An ECU, a battery, a rider separation detecting part, a main switch and a warning device are incorporated into the jacket. A wire is connected to a vehicle via a connecting terminal. When a rider who wears the jacket is separated from the vehicle, the wire which is connected to the vehicle is extended and a reel is rotated. Upon detecting a rotational angular speed of the reel, the ECU determines that the rider is separated when the rotational angular speed is large. Upon detection of the separation of the rider, ECU develops an air bag by operating an inflator.

Abstract: A removable steering angle sensor for a motor-driven power steering apparatus for use in a vehicle intended for rough road use. The handlebar of the vehicle is disposed on an upper portion of a steering shaft, and a motor-driven power steering apparatus, including a power assist portion as an actuator unit, is disposed in a middle portion of the steering shaft. The steering angle sensor for detecting a steering angle is disposed on one end of the steering shaft, or more specifically, on a lower end portion of an output shaft, or a leading end portion of an output shaft. During maintenance, this arrangement provides for easy removal and installation of the steering angle sensor.