An engine starter unit for starting an engine, includes a starter, a first controller, and a prohibiting means. The starter includes a motor generating a rotary force and a pinion transmitting the rotary force generated by the motor to the engine, the starter cranking the engine up to an engine speed of 450 rpm or more in a drive ON state. The first controller turns the starter into the drive ON state to make the starter start cranking in response to an ON operation of an ignition switch by a user. The prohibiting means prohibits the starter from being turned into the drive ON state again in response to another ON operation of the ignition switch for a prohibition duration after the first ON operation by the user.

A passive two-terminal circuit element may include a resistor including a carbon-metal composite resistive element. The resistive element is configured to maintain a resistivity that fluctuates less than one tenth of an ohm per ten degree temperature change up to 400 degrees Celsius.

A passive two-terminal circuit element may include a resistor including a carbon-metal composite resistive element. The resistive element is configured to maintain a resistivity that fluctuates less than one tenth of an ohm per ten degree temperature change up to 400 degrees Celsius.

In order to provide an engine automatic stop and restart apparatus capable of realizing excellent startability, and preventing an excessive load from being imposed on a starter (30) and a power transmission system, a starter drive inhibition determination section (12) inhibits, in a case where an engine restart condition is satisfied, when a backward rotation of an engine (20) is detected based on a crank angle of a crankshaft of the engine (20) detected by a crank angle sensor (1) for detecting the crank angle, a drive of the starter (30) configured to crank the crankshaft so as to restart the engine (20), and releases, when a stop of the engine (20) is detected, the drive inhibition of the starter (30).

A power supply apparatus configures an on-board power supply system that includes a first battery and a second battery. A first module and a first detecting unit are electrically connected to the first battery as a first electrical load. A second module and a second detecting unit are electrically connected to the second battery as a second electrical load. The first module and the second module configure an electric power steering apparatus. A starter is electrically connected to the first battery. The first battery and the second battery are electrically connected by a connection path. A resistor unit is provided on the connection path.

A device for automatically stopping and restarting an internal combustion engine is provided with a crank angle sensor (1) that detects a crank angle of an engine (10), a fuel injection unit (11) that injects fuel into the engine, and the device is also provided with a starter activation prohibition determination means that prohibits activation of a starter (20) by determining that the engine is in reverse rotation during inertial rotation of the engine, and removes the starter activation prohibition depending on the crank angle when the engine starts reverse rotation.

A barring-tool system improving safety, speed, effectiveness, and number of personnel required for maintenance, repair, and inspection of large engines, generators, and turbines, providing controlled bidirectional rotation and locking of crankshafts during maintenance, and a method for maintenance of large engines, generators, and turbines using the barring-tool system.

The present disclosure relates to a vehicle electricity storage device capable of maintaining proper backup of a main power supply. The vehicle electricity storage device includes an electricity storage circuit, a main charge circuit, and a precharge circuit. The electricity storage circuit configured to supply stored electricity to a load. The main charge circuit operates to supply electricity of a main power supply to the electricity storage circuit when an ignition switch is in an ON state of allowing an engine to start. The precharge circuit operates to supply electricity of the main power supply to the electricity storage circuit when the main charge circuit is in a state of stopping operation by the ignition switch being turned off.

A starter system including a motor, a solenoid assembly having a solenoid switch, a pinion rotated by the motor and moveable into an engaging position in which an engine may be cranked and the solenoid switch is closed to energize the motor from an electric power source, and relay switch regulated by a controller and closed to apply electrical power to the solenoid assembly for actuating the solenoid switch. The controller repeatedly opens and closes relay switch during a starting operation if sensed motor energization voltage monitored by the controller falls below a predetermined threshold level within a predetermined time period after electrical power is applied to the solenoid assembly, whereby electrical power applications to the solenoid assembly are automatically repeated during a starting operation to correct “click-no-crank” events and prevent prolonged power application to the solenoid assembly. A related method is also disclosed.

A driver assistance apparatus for a vehicle may be provided with Idle Stop and Go (ISG), and the driver assistance apparatus may include: an interface configured to receive information; and a processor. The processor may be configured to: receive, through the interface, driving information of the vehicle; and based on a determination that the vehicle is stopped in a first state in which the ISG is enabled or that the vehicle is stopped in a second state in which a gearshift of the vehicle is engaged in a Park (P) mode and an engine of the vehicle is turned on, perform a stopping operation for the vehicle based on the driving information of the vehicle.