A number of variations may include a solenoid assembly comprising: a shaft; a pinion-plunger operatively attached to the shaft and having a first end comprising a plurality of teeth; a plurality of iron cores surrounding at least a portion of the pinion-plunger and the shaft; at least one solenoid coil winding and at least one spool surrounding each of the plurality of iron cores; a stop adjacent a first end of the plurality of iron cores; a guide adjacent a second end of the plurality of iron cores opposite of the stop; a biasing member in operative communication with the first end the pinion-plunger; and wherein the solenoid assembly is constructed and arranged so that when the solenoid assembly is activated the pinion-plunger is magnetically drawn toward the stop.

A pinion starter drive for an internal combustion engine is provided. The pinion starter drive includes a drive pinion and a starter gear. At least one tooth of the drive pinion has a drive actual profile, and at least one tooth of the starter gear has a starter actual profile. A sum of at least one discrete value of a deviation of the drive actual profile from a drive target profile in the drive pinion tooth root region and at least one discrete value of a deviation of the starter actual profile from a starter target profile in the starter gear tooth tip region is less than 0. A method of manufacture of a pinion starter drive includes selecting a drive pinion and a starter gear from a plurality of gears having a deviation sum less than zero.

The invention relates mainly to a starter (11) for a motor vehicle combustion engine, comprising: an electric motor (15), a drive pinion (60), a pinion body (61) on which said drive pinion (60) is mounted, a drive shaft (12) able to transmit a torque derived from the electric motor (15) to the drive pinion (60) via the pinion body, the pinion body (61) being mounted with the ability to slide axially with respect to the drive shaft (12), and in which, with there being a chamber (86) delimited notably by one end of the drive shaft (12) and one end of the pinion body (61) opposite the end of the drive shaft (12), the chamber (86) is vented via a through-opening (85) made in an annular wall of the drive shaft (12) or of the pinion body (61).

A vehicle propulsion system includes an engine configured to be selectively activated to provide torque to propel the vehicle and a starter module coupled to the engine and configured to start the engine from an inactive state. The starter module includes a brushless electric machine to generate an output torque to crank start the engine. The starter motor also includes a pinion gear coupled to the electric machine, where the pinion gear is actuatable to selectively engage a cranking input of the engine. A controller assembly is programmed to cause actuation of the pinion gear to engage the cranking input of the engine and transfer a cranking torque to activate the engine.

A starter for an internal combustion engine may include a support, an electric motor for driving a pinion in rotation, and a solenoid drive configured to axial adjust the pinion between an active position and a passive position. The solenoid drive may include a ferromagnetic plunger stop, a plunger axially adjustable, and a cylindrical coil arrangement surrounding a cylindrical coil interior. The plunger stop may include a cylindrical section projecting into the coil interior. The plunger may be arranged axially opposite the cylindrical section and, when the pinion is in the active position, protruding axially into the coil interior. When the pinion is in the passive position, a face-side plunger end may be arranged axially in a proximal end portion. The cylindrical section may extend into the coil interior such that a face end is closer to the proximal end portion than to a distal end portion.

Systems and methods for operating a hybrid powertrain or driveline that includes an engine and an integrated starter/generator are described. In one example, the integrated starter/generator may crank the engine via a pinion gear during a first engine start. The integrated starter/generator may crank the engine via a belt during a second engine start.

An electric starter system is usable with an engine and a power inverter module (PIM), e.g., of a powertrain. The starter system includes a poly phase/AC brushless starter motor connected to the PIM via an AC voltage bus and selectively connected to the engine during a requested engine start event. A sensor on the DC voltage bus outputs a signal indicative of a voltage level of the DC voltage bus. The controller executes a method using voltage stabilization logic having a proportional-integral (PI) torque control loop. Logic execution in response to the requested engine starting event causes the controller to control the starter motor, when the bus voltage exceeds a calibrated minimum voltage, using a starting torque determined via the control loop. The commanded starting torque limits inrush current to the starter motor such that the DC voltage bus remains above the minimum voltage.

A starter is installed in a vehicle. In the starter, a crank shaft is driven by a motor which rotates a pinion gear in a state where a ring gear connected to the crank shaft is in engagement with the pinion gear. Thus, an engine is started. The starter sets a start-up period depending on the type of the start-up trigger that generates a start-up request for the engine, and sets a current supplied to the motor on the basis of the set start-up period. Thus, at least either of a rotation speed and an output torque of the motor is controlled. This control is implemented by a control circuit.

A starter is installed in a vehicle. In the starter, a crank shaft is driven by a motor which rotates a pinion gear in a state where a ring gear connected to the crank shaft is in engagement with the pinion gear. Thus, an engine is started. The starter sets a start-up period depending on the type of the start-up trigger that generates a start-up request for the engine, and sets a current supplied to the motor on the basis of the set start-up period. Thus, at least either of a rotation speed and an output torque of the motor is controlled. This control is implemented by a control circuit.

A starter for starting an engine in a vehicle, which includes a motor and an output shaft that rotates by receiving torque from the motor. The starter also includes a pinion movable body that includes a pinion for transmitting the torque of the motor to a ring gear of the engine. The pinion movable body is provided on an outer circumference of the output shaft integrally with the pinion in a manner allowing movement along an axial direction. The solenoid assembly consist of two divisions, one for to pull up the drive in the solenoid and the other to activate the starter motor by energizing the electronic circuit.