Yazaki Corporation

Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Tatsumi Tashiro

Tsuyoshi Uchikura

Shinji Suganuma

Junkoh Shima

Hiroo Yabe

Seika Matsui

Akihiro Tanaka

Masahiro Kasai

Koichi Hirota

Toshiro Maeda

Yasushi Saitoh

Takao Ota

Yoshihiro Nakamura

Kazumi Nagasawa

Masato Kume

A load controller includes: an input circuit which detects that a drive instruction signal is less or equal to a first input threshold value; a constant current source activated in accordance with a detection by the input circuit; a PWM signal generating unit that is activated by the constant current source and generates a PWM signal; a comparator that is activated by the constant current source and compares the drive instruction signal with a second input threshold value set to be lower than the first input threshold value; a logic calculation unit that carries out a logic calculation of the PWM signal with a compared result of the comparator; a drive control unit that operates in accordance with an output from the logic calculation unit to generate a PWM drive control signal; and a load driving element that is driven by the PWM drive control signal to control a load.

Load controller to pulse width modulation-control a load

A load controller includes: a first input circuit which detects that a drive instruction signal by an operation of a drive instructing unit is less or equal to a first input threshold value; a first constant current source activated in accordance with the detection; a PWM signal supply unit that is activated by the first constant current source and supplies a PWM signal having a prescribed frequency and a duty ratio; a constant control signal supply unit that supplies a constant control signal during failure of the first input circuit or the first constant current source; a drive control unit that generates a PWM drive control signal in accordance with the PWM signal and generates a constant drive control signal in accordance with the constant control signal; and a load driving element that is controlled by the PWM drive or constant drive control signal to drive a load.

Load controller

A connecting structure of a component in a wire harness includes a relay box connected to a circuit at a power supply side and a circuit at a headlamp side, and a control unit connected to the relay box. A connecting section of the relay box is configured to be selectively connected to either one of a headlamp control device and a relay for turning on and off low beam or high beam. Both of the headlamp control device and the relay have terminals of the same shape.

Connecting structure of component in wire harness

A position detection device enables an accurate detection of a position of a moving object. Two cam surfaces are formed on an outer peripheral surface of a rotary body ( ) and micros-witches ( ) are brought into contact with respective cam surfaces and a logic (L, H) can be established based on signals from two switches.

Position detection device

An open/close body control system for a vehicle can stabilize outputs of a pair of electrically operated motors (M , M ) which drive an open/close body for a vehicle. Speeds of the electrically-operated motor (M , M ) are synchronously controlled such that predictive positions (XLt&plus;1, XRt&plus;1) of electrically-operated motor (M , M ) after a lapse of a unit time gradually approach a target position (XTRG) calculated based on present positions (XLt, XRt) and a target speed (&Dgr;XTRG) of the electrically-operated motors (M , M ).

Movable body control system for vehicle

In an open roof operating method, when a pulse of a value equal to or greater than a set value is inputted to an ECU when the outputting of motors is stopped, simultaneous operations of respective components are stopped. By adding a sequential non-interference operation flow to a simultaneous operation flow, the interference among respective components under specific conditions can be obviated.

Open roof operating method and open roof operation control system

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Toyota, Japan

Tatsumi Tashiro