Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Hodaka Kamiya

Masachika Kamiya

Tomoo Kakegawa

Akio Nakano

Noriaki Terashima

Akihiro Muramatsu

Tooru Hagiwara

A vehicular system includes a vehicle side unit and mobile devices registered to the vehicle side unit. The vehicle side unit transmits a first request signal designating a first mobile device. A replying section of the first mobile device replies a response signal when receiving the first request signal. A replying section of a second mobile device replies a non-designated report signal when receiving the first request signal at a time point different from a time point at which the first mobile device replies the response signal. The vehicle side unit includes a vehicle side receiving section receiving the signal transmitted from the replying section of each mobile device and a locked-in determiner determining that only the first mobile is locked in the compartment of the vehicle when the response signal from the first mobile device is received and the non-designated report signal is not received.

Vehicular system, vehicle side unit, and mobile device

An engine start control system includes a key transponder, a steering lock, a driver authorizer, an engine starting switch, a pre-driving operation detector, a first and second steering lock controllers and an engine start controller. The key transponder stores a slave ID code and transmits the slave ID code at a request. The driver authorizer stores a master ID code and determines whether the slave ID code corresponds to the master user ID code. The pre-driving operation detector detects a driver's preparatory operation to start the engine. The first steering lock controller permits the steering lock to be unlocked when the driver authorizer determines that the slave ID code corresponds to the master ID code. The second steering lock controller unlocks the steering lock when the pre-driving operation detector detects the driver's preparatory operation. The engine start controller permits the engine to be started when the steering lock is unlocked.

Engine start control system for vehicle

Prenotification information of releasing prohibition of an engine operation is stored in an EEPROM in an interval. The interval is after that a lock controller commands a steering lock to be operable. The interval is before that an engine controller switches an engine operation prohibiting signal to be in a prohibition releasing condition. The engine operation prohibiting signal may change from the prohibition releasing condition to the prohibition setting condition after an engine starting controller starts an engine. In this condition, the engine is stopped, or is continuously operated in accordance with the prenotifying information stored in the EEPROM.

Control system for engine starting

An engine start controlling system for an engine of the vehicle, makes an authentication for a user ID received from a mobile device and authentications for respective device IDs received from respective electrical devices. The system allows, based on a first operation, the engine to start, in a case that all of the authentications for the user ID and the device IDs are successful, and prohibits the engine from starting, in a case that the authentication for the user ID is unsuccessful, irrespective of results of the authentications for the respective device IDs. The engine start controller further allows, based on a second operation, the engine to start, in a case that all of authentications belonging to a selected group are successful and that one authentication belonging to a second group is unsuccessful.

Engine start controlling system

A smart key system for a vehicle determines that a mobile communicator is not in the passenger compartment and that an in-trunk communicator communicates with the mobile communicator when the trunk gets locked. Then the smart key system executes a recovery process for the mobile communicator locked in the trunk.

Smart key system

In the keyless entry control, if control switches are operated again while a transmission process specified by the control switch is being executed, function codes specified by states of operation of the control switch are stored by a transmitter. A remote control signal generated by converting the stored function code is transmitted after the completion of the preceding transmission process. If the control switch is operated twice to unlock all the doors of a vehicle, the doors other than that beside a driver's scat are unlocked by a transmission process corresponding to the second operation of the control switch after the door beside the driver's seat is unlocked in response to the first operation of the control switch.

Growing community of inventors

Obu, Japan

Hodaka Kamiya