Abstract: An electronic automobile anti-theft apparatus having high reliability includes a motor, which moves a lock pin to lock a steering shaft of an automobile. A solenoid maintains the lock pin in a state released from the steering shaft and operates to permit the lock pin to lock the steering shaft by receiving power. An ECU controls the operations of the motor and the solenoid. A mechanical switch stops supplying the solenoid with power to prevent unintentional locking by the lock pin when the automobile is being driven or when driving of the automobile is enabled.

Abstract: An electronic automotive anti-theft device that prevents unintentional operation. The anti-theft device includes a lock pin for engaging and disengaging at least one of a movable member of a steering mechanism and a movable member of a driving mechanism in an automobile. An actuator drives the lock pin. A control unit is connected to the actuator to control the actuator. A power supply line connects the control unit to a power supply. A power supply switch is connected to the power supply line to supply the control unit with power. The power supply switch disconnects the power supply line when the automobile is being driven or when the automobile is allowed to be driven.

Abstract: An electronic automobile anti-theft apparatus having high reliability includes a motor, which moves a lock pin to selectively lock a steering shaft of an automobile. An ECU controls the operation of the motor. A detector generates a detection signal when a shift lever of shift device for a transmission of the automobile is arranged at a parking position. A power transistor goes on in response to the detection signal to permit power to be supplied to the motor.

Abstract: A vehicle engine starting apparatus has an engine start switch, a display device and a microcomputer. The display device shows the location of the start switch. The microcomputer identifies a specific signal, and controls the display device in accordance with the result of the identification executed by the microcomputer.

Abstract: A vehicular remote control apparatus warns a driver when the driver moves from the inside of a vehicle to the outside of the vehicle while an engine is operating. The vehicular remote control apparatus is located inside the vehicle and includes a transmitter-receiver for generating a first request signal and a portable device for generating a transmission signal in response to the first request signal and transmitting the transmission signal to the transmitter-receiver. The first request signal is transmitted to outside the vehicle. The transmitter-receiver includes a determining device for determining whether the engine is operating and a warning signal transmission device for generating a first warning signal if the engine is operating when receiving the transmission signal and transmitting the first warning signal to the portable device located outside the vehicle. The portable device includes a warning device for giving a warning when the portable device receives the first warning signal.

Abstract: A vehicle engine starting apparatus has an engine start switch, a display device and a microcomputer. The display device shows the location of the start switch. The microcomputer identifies a specific signal, and controls the display device in accordance with the result of the identification executed by the microcomputer.

Abstract: A vehicular remote control apparatus warns a driver when the driver moves from the inside of a vehicle to the outside of the vehicle while an engine is operating. The vehicular remote control apparatus is located inside the vehicle and includes a transmitter-receiver for generating a first request signal and a portable device for generating a transmission signal in response to the first request signal and transmitting the transmission signal to the transmitter-receiver. The first request signal is transmitted to outside the vehicle. The transmitter-receiver includes a determining device for determining whether the engine is operating and a warning signal transmission device for generating a first warning signal if the engine is operating when receiving the transmission signal and transmitting the first warning signal to the portable device located outside the vehicle. The portable device includes a warning device for giving a warning when the portable device receives the first warning signal.

Abstract: A battery capacity measuring device in accordance with the present invention has a fully-charged state detector (80e), a detected current integrator (80a), a divider (80b), and a corrector (80c) incorporated in a microcomputer (80). The fully-charged state detector detects that a battery is fully charged. The detected current integrator integrates current values that are detected by a current sensor during a period from the instant the battery is fully charged to the instant it is fully charged next. The divider divides the integrated value of detected current values by the length of the period. The corrector corrects a detected current using the quotient provided by the divider as an offset. Furthermore, a remaining battery capacity calculating system comprises a voltage detecting unit (50), a current detecting unit (40), an index calculating unit, a control unit, and a calculating unit. The voltage detecting unit detects the voltage at the terminals of a battery.

Abstract: A vehicle engine starting apparatus that allows a driver to start an engine easily. The apparatus has a plurality of operation modes. The apparatus includes a starter motor, an ignition switch, and a control circuit. The ignition switch is pressed to generate an operation signal. The control circuit is connected to the starter motor and the ignition switch. The control circuit changes the current operation mode or activates the starter motor to start the engine depending on the nature of the operation signal.

Abstract: An electronic automotive anti-theft device that prevents unintentional operation. The anti-theft device includes a lock pin for engaging and disengaging at least one of a movable member of a steering mechanism and a movable member of a driving mechanism in an automobile. An actuator drives the lock pin. A control unit is connected to the actuator to control the actuator. A power supply line connects the control unit to a power supply. A power supply switch is connected to the power supply line to supply the control unit with power. The power supply switch disconnects the power supply line when the automobile is being driven or when the automobile is allowed to be driven.

Abstract: An electronic automobile anti-theft apparatus having high reliability includes a motor, which moves a lock pin to selectively lock a steering shaft of an automobile. An ECU controls the operation of the motor. A detector generates a detection signal when a shift lever of shift device for a transmission of the automobile is arranged at a parking position. A power transistor goes on in response to the detection signal to permit power to be supplied to the motor.

Abstract: An electronic automobile anti-theft apparatus having high reliability includes a motor, which moves a lock pin to lock a steering shaft of an automobile. A solenoid maintains the lock pin in a state released from the steering shaft and operates to permit the lock pin to lock the steering shaft by receiving power. An ECU controls the operations of the motor and the solenoid. A mechanical switch stops supplying the solenoid with power to prevent unintentional locking by the lock pin when the automobile is being driven or when driving of the automobile is enabled.

Abstract: A vehicle engine starting apparatus that allows a driver to start an engine easily. The apparatus has a plurality of operation modes. The apparatus includes a starter motor, an ignition switch, and a control circuit. The ignition switch is pressed to generate an operation signal. The control circuit is connected to the starter motor and the ignition switch, The control circuit changes the current operation mode or activates the starter motor to start the engine depending on the nature of the operation signal.