Asmo Co., Ltd.

Nippondenso Co., Ltd.

Toyota Jidosha Kogyo Kabushiki Kaisha

Amso Co., Ltd.

Tsutomu Saito

Takeshi Tanaka

Noboru Tsuge

Hidenori Ishihara

Kengo Yamamura

Katsuhiko Torii

Tomoyuki Kikuta

Hirokazu Tsuda

Takahiro Yamada

Hideo Saji

Yoshiyuki Morita

Youji Higuchi

Masami Ito

Kazuyuki Kurata

Kazuhiro Takehara

Mitsumasa Inagaki

When a closing end of a vehicle windowpane is located at the upper side of a preset point P1 while the windowpane is closing, an obstacle pinched between a window frame and the windowpane is detected by a window frame sensor. When the closing end of the vehicle window is located at the lower side of a preset point P2, the pinched obstacle is detected by the window frame sensor and a motor rotation speed sensor, which indicates changes in motor driving load. This prevents a vehicle window control system from operating erroneously when an obstacle is pinched at a slope portion of the window frame.

Vehicle window control system responsive to external force

In a power window apparatus, an external force which develops at the time of catching foreign objects in a window is detected directly by a window frame sensor and indirectly by a motor load detection circuit. Automatic window closing operation is disabled when the external force exceeds a first and a second predetermined levels of the window frame sensor and the motor load detection circuit, respectively. When the window frame sensor fails, the window closing operation is disabled and a warning is provided at the time the external force detected by the load detection circuit reaches a third predetermined level. Alternatively, the automatic window closing operation is disabled when the external force exceeds the first or the second predetermined levels of the window frame sensor or the motor load detection circuit, respectively. When the window frame sensor fails, the window closing operation is disabled and the warning is provided at the time the external force reaches the second predetermined level. In each case, once the window frame sensor fails, the predetermined level used to determine a failure of the window frame sensor may be lowered so that the window closing operation may be disabled earlier.

Power window apparatus with sensor failure detection

An automatic controller for use with a motor. A switch interconnects the motor and a power source for selectively establing an electrical connection therebetween. A relay coil is connected to the motor. When the motor is connected to the power source via the switch, the relay coil latches the switch in a steady connecting state. When increased current overdraw of the motor is sensed, a current-limiting thermistor limits or interrupts the current flow across the relay coil, to set the switch to a disconnect state and to cause the motor to stop.

Controller for automatically stopping motor in response to overcurrent

A built-up stepping motor includes upper and lower housings each having an internal space and joined together with a support plate disposed therebetween. The lower housing retains therein a stator and a rotor disposed in the stator, while the upper housing holds therein a reduction gear for reducing the output speed of the motor. The output end of a rotor shaft extends through the support plate and meshes with a first gear of the reduction gear. The upper and lower housings are assembled together by interlocking engagement between locking projections and mating holes. A shock-absorbing damper is disposed between two stator cores to protect them against chattering.

Built-up stepping motor

A power window apparatus improved to reduce the step between the outer surface of a window glass and the outer surface of a door outer panel so as to realize a flush surface state when the window glass has been moved to full close position. The window glass is supported such that the lower end portion of the window glass can be moved towards the door outer panel and the lower end portion of the window glass is shifted towards the door outer panel when the window glass has been moved to a position near the full close position.

Power window apparatus

A closure device for opening and closing an opening by moving a closure member substantially vertically has a motor for driving the closure member. The motor is secured to a lower portion of the closure member and within substantially the same plane as the plane of movement of the closure member. Accordingly, it is possible to prevent an eccentric load from being applied to the closure member.

Closure device

A fuel control apparatus for a diesel engine is provided with a control lever which reciprocates between two positions under control of a motor shaft which rotates in one direction only. The control lever connects to a fuel control lever which is moved from a fuel shut-off position to a starting fuel increasing position and then to a normal fuel supply position in accordance with the movement of the control lever. Motor control is effected by relay control in accordance with the positions of a key switch, a pattern switch rotating angularly with the motor shaft, and a switch which determines whether the engine is rotating or at rest.

Growing community of inventors

Toyohashi, Japan

Tsutomu Saito