The present invention provides a motor driver and a motor driving system capable of suppressing power consumption when a motor is in a brake state. The motor driver of the present invention includes: a half-bridge power output section, including a high-side transistor and a low-side transistor; a high-side driving circuit, driving the high-side transistor; and a control portion. When switching to a brake mode, the low-side transistor is turned on and the control portion turns off the high-side driving circuit.

The present invention provides a motor driver and a motor driving system capable of suppressing power consumption when a motor is in a brake state. The motor driver of the present invention includes: a half-bridge power output section, including a high-side transistor and a low-side transistor; a high-side driving circuit, driving the high-side transistor; and a control portion. When switching to a brake mode, the low-side transistor is turned on and the control portion turns off the high-side driving circuit.

A wiper controlling method and apparatus are provided. The wiper controlling apparatus obtains an area of a Pulse Width Modulation (PWM) control signal generated for driving a wiper motor while a wiper moves in a pre-defined section and controls a speed of the wiper based on a result of comparing the area with at least one pre-defined reference value.

A wiper controlling method and apparatus are provided. The wiper controlling apparatus obtains an area of a Pulse Width Modulation (PWM) control signal generated for driving a wiper motor while a wiper moves in a pre-defined section and controls a speed of the wiper based on a result of comparing the area with at least one pre-defined reference value.

The present invention proposes a wiper system being capable of ensuring wiping quality for the windshields with complex surfaces. The wiper system comprises: a wiper arm (19), on which a wiper blade (12) for cleaning a surface (16) of an object to be cleaned is provided; a first electrical motor (1) driving the wiper arm (19) to swing; a second electrical motor (9); a sensor (13) measuring a parameter representing the position of the wiper arm on the object to be cleaned; a control unit (7) receiving said parameter from said sensor (13) and utilizing said parameter to control the rotation angle of the an output shaft (18) of the second electrical motor (9), such that the output shaft (18) drives rotate the wiper blade (12) under control to change the rotation angle of the central plane of the wiper blade with respect to the wiper arm. The present invention also proposes a vehicle comprising said wiper system.

The present invention proposes a wiper system being capable of ensuring wiping quality for the windshields with complex surfaces. The wiper system comprises: a wiper arm (19), on which a wiper blade (12) for cleaning a surface (16) of an object to be cleaned is provided; a first electrical motor (1) driving the wiper arm (19) to swing; a second electrical motor (9); a sensor (13) measuring a parameter representing the position of the wiper arm on the object to be cleaned; a control unit (7) receiving said parameter from said sensor (13) and utilizing said parameter to control the rotation angle of the an output shaft (18) of the second electrical motor (9), such that the output shaft (18) drives rotate the wiper blade (12) under control to change the rotation angle of the central plane of the wiper blade with respect to the wiper arm. The present invention also proposes a vehicle comprising said wiper system.

This disclosure enables an assembly for driving an arm of a windshield wiper of a vehicle. The assembly includes a support structure in a housing that is secured against rotation relative to the housing. The support structure has an opening with a bearing surface, where the opening is configured to receive a boss of a worm wheel such that the bearing surface faces the boss of the worm wheel.

This disclosure enables an assembly for driving an arm of a windshield wiper of a vehicle. The assembly includes a support structure in a housing that is secured against rotation relative to the housing. The support structure has an opening with a bearing surface, where the opening is configured to receive a boss of a worm wheel such that the bearing surface faces the boss of the worm wheel.

A vehicular windshield wiper control system includes a camera disposed at a vehicle and viewing through a windshield of the vehicle and an electronic control unit (ECU). Electronic circuitry of the ECU includes an image processor. The system, based on processing of image data captured by the camera, is operable to determine presence of a substance at an outer surface of the windshield. The system includes a windshield wiper having a rubber wiping blade and a cleaning element. The system is operable to (i) cause the rubber wiping blade to engage the windshield and/or (ii) cause the cleaning element to engage the windshield. Responsive to determining presence of the substance, the system causes the cleaning element to engage the windshield. With the rubber wiping blade and/or cleaning element engaging the outer surface of the windshield, the system moves the rubber wiping blade and/or cleaning element along the windshield.

A droplet sensor includes an optical cover that forms part of a spheroid, a major axis of the spheroid being a vertical axis, a light emitting/receiving device disposed at a position offset from a first focal point of the spheroid along the major axis, and a reflector disposed in vicinity of a second focal point of the spheroid. The optical cover has an effective detection area between the light emitting/receiving device and the reflector. The effective detection area satisfies a total internal reflection condition at an interface with a gas, and does not satisfy the total internal reflection condition at an interface with a liquid. The reflector reflects, towards a light receiving surface of the light emitting/receiving device, light totally reflected by the effective detection area, or reflects, towards the effective detection area, light directly incident on the reflector from the light emitting/receiving device.