In a system that shares a battery with an external device, the system includes a power storage device connected to the battery via a power supply line. The system includes a switch provided on the power supply line, and a control unit. The control unit controls on-off switching operations of the switch to selectively establish an electrical conduction between the battery and the power storage device or interrupt the electrical conduction therebetween. The battery has a battery voltage thereacross, and the power storage device has a power-storage voltage thereacross. The battery charges the power storage device while the electrical conduction is established so that the power-storage voltage follows the battery voltage. The control unit turns off the switch when the battery voltage is in a predetermined insufficient voltage state to prevent electrical power charged in the power storage device from being discharged to the battery.

In a drive assist system, a map data acquiring section acquires a forward road shape and a rearward road shape. The forward road shape represents a road shape at a forward position in front of a current position of an own vehicle on a road on which the own vehicle drives. The rearward road shape represents a road shape at a rearward position on the road. The rearward position is behind the forward position and in front of the current position of the own vehicle on the road. An assist control calculation section determines steering characteristics of the own vehicle at the target position located between the forward position and the rearward position based on the forward road shape and the rearward road shape, and adjusts a steering angle of the own vehicle on the basis of the determined steering characteristics of the own vehicle.

A snowmobile having enhanced steering control has driving control system including an electrically actuated device coupled to a steering system having a user operated steering element with the device applying torque to the steering system, a throttle, a plurality of sensors including a torque sensor and at least one additional sensor to generate terrain condition data and operational data, and at least one controller coupled to the device and the sensors. The at least one controller selects a terrain condition mode using the generated terrain condition and generated operational data, determines the torque to apply responsive to the angle and speed of rotation of user operated steering element, and operates the electrically actuated device to apply the torque to the steering system, with the torque being applied only by the electrically actuated device.

Embodiments of this application provide a speed shifting apparatus, a control method thereof, a steering system, and a control method thereof, and relate to the field of mechanical transmission technologies. The speed shifting apparatus includes: an outer rotating wheel; an inner rotating wheel, where a rotation axis of the inner rotating wheel is parallel to and different from a rotation axis of the outer rotating wheel; and a plurality of meshing members, arranged along a circumferential direction of the inner rotating wheel or the outer rotating wheel. Either the outer rotating wheel or the inner rotating wheel is provided with a plurality of sliding grooves, and the plurality of sliding grooves are in a one-to-one correspondence with the plurality of meshing members.

A method for managing a power steering system assist motor, includes defining, over the functional length of the actuator member, at least one reduced assist area separate from a normal assist area by an end-of-travel virtual threshold, a step of assessing an instantaneous position and a direction of the movement of the actuator member on the functional length, a step of applying an input resistance set point value to the assist motor when the actuator member crosses the end-of-travel virtual threshold in such a way as to move from the normal assist area into the reduced assist area. After the step of applying an input resistance set point value, an output resistance set point value is applied when the actuator member is in the reduced assist area and the direction of the movement of the actuator member is directed from the reduced assist area towards the normal assist area.

Provided is a turning function-equipped having a reduced size and having improved strength to an external shock force and improved reliability. The turning function-equipped hub unit includes: a hub unit main body; a unit support member; and a turning actuator. The unit support member is provided to a chassis frame component. The unit support member includes an abutment part with which a part of the hub unit main body is brought into abutment in a vertical direction during non-normal time, the abutment part being separated from the hub unit main body in the vertical direction during normal time, and the non-normal time in which the abutment is caused, is a time when an impact load equal to or greater than a predetermined value acts on the hub unit main body in the vertical direction due to an external force from the wheel.

The invention relates to a method for adjusting a servo steering torque in a vehicle steering system, wherein the servo steering torque can be generated by an actuator of the vehicle steering system. The method comprises: receiving a driver's steering request, receiving a steering request from at least one driver assistance system, receiving at least one driving dynamics variable, determining a static state in which a change of the driver's steering request and the driving dynamics variable each is below a predetermined threshold, and if the static state has been determined, adjusting the servo steering torque by regulating, wherein a control variable for the regulation is determined based on a driver's steering request and the steering request by the driver assistance system.

A shock damper is disposed between a vehicle body side and a wheel side. A suspension control device calculates a damping force of the shock damper on the basis of vehicle height information and controls the damping force. A steering system includes an electric motor and a steering control device that controls the electric motor, and assists steering effort of the driver through the electric motor. The suspension control device calculates the vibration generated in a steering on the basis of a detected value of a vehicle height sensor and creates a signal for generating steering torque that reduces the generated vibration. The suspension control device outputs the created signal to the steering control device. Steering torque for cancelling steering vibration is accordingly outputted from the electric motor of the steering system.

A steering control device includes a control unit configured to perform a calculation based on angle information and to control the operation of a turning section based on a turning control amount. The angle information is obtained by relating the turning control amount for operating the turning section to a steering angle that is an angle by which a steering wheel is steered. The control unit includes a speed increase ratio calculation unit configured to calculate a speed increase ratio based on state variables, and an angle information calculation unit configured to calculate the angle information by converting the steering angle using the speed increase ratio obtained by the speed increase ratio calculation unit.

In a control device to control a motor in an electric power steering apparatus including the motor, processor executes, according to a program calculation of a target assist torque by performing proportional integral (PI) control based on a target steering wheel angle and a steering angle, and control of the motor based on the target assist torque. A gain of an integrator used for integral (I) control of the PI control is variable.