A motor includes: a stator having an annular stator core and multiple teeth protruding radially inwards from the stator core; a coil wound around the teeth; a shaft rotating around the rotation axis radially inside of the stator core; a rotor core fixed to the shaft; magnets positioned on the outer peripheral surface of the rotor core; a salient pole positioned between magnets adjacent to each other in the circumferential direction; an applying portion applying a voltage to the coil; and an applying control portion controlling the applying portion. The ratio of the number of magnetic poles of the magnets and the number of teeth is 2:3. The voltage is a rectangular wave, and its application is started when the tip of the salient pole does not face an opening in the teeth.

A motor includes: a stator having an annular stator core and multiple teeth protruding radially inwards from the stator core; a coil wound around the teeth; a shaft rotating around the rotation axis radially inside of the stator core; a rotor core fixed to the shaft; magnets positioned on the outer peripheral surface of the rotor core; a salient pole positioned between magnets adjacent to each other in the circumferential direction; an applying portion applying a voltage to the coil; and an applying control portion controlling the applying portion. The ratio of the number of magnetic poles of the magnets and the number of teeth is 2:3. The voltage is a rectangular wave, and its application is started when the tip of the salient pole does not face an opening in the teeth.

A windshield wiper system includes a wiper arm, a wiper blade attached to the wiper arm, an output shaft attached to an end of the wiper arm, an actuator attached to the output shaft, a controller, a first sensor, a second sensor, and a third sensor. The controller is configured to activate the actuator, causing the output shaft to rotate and thus driving the wiper arm with the attached wiper blade in a sweeping motion across a windshield. The controller is also configured to receive signals from the first, second, and third sensors indicating the position of the wiper arm and the wiper blade.

A windshield wiper system includes a wiper arm, a wiper blade attached to the wiper arm, an output shaft attached to an end of the wiper arm, an actuator attached to the output shaft, a controller, a first sensor, a second sensor, and a third sensor. The controller is configured to activate the actuator, causing the output shaft to rotate and thus driving the wiper arm with the attached wiper blade in a sweeping motion across a windshield. The controller is also configured to receive signals from the first, second, and third sensors indicating the position of the wiper arm and the wiper blade.

A windshield wiper assembly for an automobile, comprising a wiper arm, a wiper blade, a plurality of double claw fixtures pivotally mounted onto the wiper arm and adapted to support the wiper blade on the wiper arm, and an actuator adapted to selectively induce rotation of the wiper blade along a longitudinal axis of the wiper blade relative to the wiper arm, each of the double claw fixtures adapted to rotatably support the wiper blade.

A lidar sensor may include: a transmitter configured to transmit laser; a receiver configured to receive reflected laser; a mirror rotating unit configured to rotate a mirror in a designated direction, the mirror serving to reflect the transmitted or received laser; a cleaning device driving unit configured to drive a cleaning device to remove foreign matters adhering to the cover of the lidar sensor; a signal processing unit configured to determine when or where the lidar sensor is covered and calculate a distance to an object; and a control unit configured to control the transmitter not to transmit a laser signal or control a rotational velocity or rotation time of the mirror at a point of time that the lidar sensor is covered by the cleaning device, and control detection or utilization of the received signal when the distance to the object is calculated.

A system and method for sensing precipitation conditions near a vehicle. The precipitation radar system is mounted on the vehicle and includes a transmitter, a receiver, and an electronic control unit. The method transmits radar signals from the transmitter; receives reflected radar signals at the receiver; determines response information from the reflected radar signals for a region of interest; and uses the response information to determine precipitation conditions for the region of interest. The region of interest is defined, at least in part, by a range and the response information includes phase data, amplitude data, or both phase and amplitude data based on the reflected radar signals. The method and system may then use the precipitation conditions to control other responsive vehicle actions, such as activating a windshield heater, a windshield defroster, a windshield wiper or a combination thereof.

A rainwater detection device for detecting rainwater is provided. The rainwater detection device includes: a panel having a surface; rainwater sensing wires on the surface; and a rainwater sensor (i) physically connected with the rainwater sensing wires without an electrical connection if a condition is unsatisfied and (ii) physically and electrically connected with the rainwater sensing wires if the condition is satisfied; wherein a first wire, one of the rainwater sensing wires, is separated from a second wire, another of the rainwater sensing wires, by an interval, without contacting each other and wherein the rainwater sensing wires are connected to opposite polarity of an electrode connected with the rainwater sensor, and wherein the condition is that a first state where no current flows between the first and the second wires is changed to a second state where current flows between the first and the second wires due to the rainwater.

A brushless motor includes: a stator having a three-phase winding; a rotor that has a permanent magnet; an inverter that supplies an AC current to the three-phase wiring by turning on or turning off a plurality of switching elements; and a control part that controls an ON or OFF state of the plurality of switching elements by switching a power distribution pattern that represents a change of a power distribution state of each phase of the three-phase wiring in response to a rotation of the rotor to a low-speed power distribution pattern in use for a low-speed power distribution control or a high-speed power distribution pattern in use for a high-speed power distribution control, wherein the control part switches the power distribution pattern to the low-speed power distribution pattern in a case where a rotation speed of the rotor is less than a predetermined threshold value, and the control part switches the power distribution pattern to the high-speed power distribution pattern when a state in which a load of the rotor is within a predetermined range is continued for a predetermined period of time in a case where the rotation speed of the rotor is equal to or more than the threshold 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.