Toyota Jidosha Kogyo Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Nippondenso Co., Ltd.

Osamu Hori

Teruo Yamanaka

Masahiro Ueda

Masahiko Noba

Hatsuo Nakao

Kimitoshi Murata

Toshiharu Iwata

Katsumi Kondo

Jun Ohta

Teruyoshi Ito

Yukio Sakakibara

Hiroo Utsumi

Mitsuyuki Banno

Takayuki Makino

Masahiko Nagai

Kiyokane Kazi

An engine is automatically stopped under predetermined conditions, thereafter, restarted under other predetermined conditions. The conditions of automatically stopping the engine includes at least a stopped state of a wiper which is driven by two-speed typed motor. Operating condition of the motor for driving the wiper is detected by a signal from either a low terminal or a high terminal of the motor.

Automatic engine stop-restart system

In a system wherein the operating conditions of various portions of a vehicle are detected and an engine is automatically stopped and started in accordance with the operating conditions thus detected, a fuel supply system is cut to prevent the run-on of the engine in addition to the cut-off of current passage to an ignition system as in the prior art. There controls are effected when both any one or more of predetermined operating conditions and any one or more of conditions of precluding the automatic stop are present.

Automatic engine stop and start system

A knocking detecting apparatus for an internal combustion engine with a knocking detector for detecting a factor of knocking in the engine and a circuit for generating a knocking discrimination level in response to the output signal of the knocking detector, for detecting knocking by comparing the output signal of the knocking detector and the knocking discrimination level. The knocking detecting apparatus comprises a circuit for clamping the output of the knocking discrimination level generator circuit such that the knocking discrimination level does not exceed a predetermined voltage.

Knocking detecting apparatus for an internal combustion engine

An electrode for a spark discharge in a distributor is surface treated by using a spray coating process so as to provide the electrode with a surface layer of an electrically high resistive material, e.g. CuO, which surface layer further includes a predetermined percentage of refractory and electrical insulating material, e.g. Al.sub.2 O.sub.3, SiO.sub.2 or MgO.multidot.Al.sub.2 O.sub.3. A distributor having one such treated electrode for the distributor rotor and/or such treated electrodes for stationary terminals can exhibit stably-suppressed noise for over a long period of time.

Method for surface treatment of electrode in distributor of internal

A distributor containing an apparatus for suppressing noise is described, comprising a first spark discharging gap and a second spark discharging gap which exists close to the first spark discharging gap both of which are located between the electrodes of a distributor rotor and a stationary terminal, wherein the second spark discharging gap is formed through a dielectric member which is fixed to the distributor rotor and/or a stationary terminal, and the gap distance of the second spark discharging gap is shorter than that of the first spark discharging gap. The difference between the first spark discharging gap distance and the second spark discharging gap distance should be less than 3mm but greater than 0.2mm. Preferably, the difference should be less than 1.5mm but greater than 0.5mm.

Distributor for internal combustion engine containing apparatus for

A distributor containing an apparatus for suppressing noise is described, comprising a first discharging gap and a second discharging gap which exists close to the first discharging gap both of which are located between the electrodes of a distributor rotor and a stationary terminal, wherein the second discharging gap is formed through a dielectric member which is fixed to the distributor rotor and/or a stationary terminal, the gap distance of the second discharging gap is shorter than that of the first discharging gap.

A distributor containing an apparatus for suppressing noise is described, comprising an electrode of a distributor rotor and a group of electrodes of a plurality of stationary terminals which are arranged along a circular locus defined by the rotating distributor rotor keeping a constant spark discharging gap, wherein the surface of at least one of said electrodes of the distributor rotor and the stationary terminals is formed by an electrically high resistive material layer. The base layers for the electrodes and terminals are disclosed as made of silicon, brass, invar, steel and aluminum. The electrically high resistive layers are disclosed as made of silicon dioxide, copper oxide, aluminum oxide and invar oxide.

Internal combustion engine distributor having oxidized electrodes or

A distributor containing an apparatus for suppressing noise is described, comprising a first discharging gap which exists between electrodes of a distributor rotor and a stationary terminal, both of which are located in the distributor and a second discharging gap to which a resistance element is connected in series, wherein the second discharging gap and the resistance element are connected close to and also, electrically parallel to the first discharging gap.

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Toyota, Japan

Osamu Hori