摘要:
A starter protector for a starter of an engine has a switching circuit which turns the starter off, and a calculating circuit which measures the frequency of ripples which are superimposed on either the terminal voltage or the terminal current of the starter and controls the switching circuit so as to turn off the starter when the frequency exceeds a prescribed value. In another form of the invention, a calculating circuit counts the number of ripples which are superimposed on the terminal voltage or terminal current of the starter and controls the switching circuit to turn off the starter when the number of ripples exceeds a prescribed value.
摘要:
Techniques for controlling the operation of an electro-magnetic switch are provided. The current supplied to an exciting coil of the electro-magnetic switch is gradually increased until the contacts of the switch are closed. After the closure of the contacts, the exciting current is reduced to the minimum level needed to hold the contacts closed.
摘要:
A power supply to various electric accesaries of a vehicle is stopped when an instruction of engine starting is given after a engine key switch is turned on. An excitation current of an electromagnetic switch of an engine starter increases gradually with time and after checking various conditions necessary to start the engine therafter, the supply of the excitation current is blocked until a completion of engine starting is decided when the checking shows some problem on engine start and a power supply to the various electric accessaries is allowed after a completion or blocking of the excitation current.
摘要:
A planetary gear reduction starter has packing designed to absorb the variations in the axial dimension of a component, so that it eliminates the need of tight control of the axial dimension of the component and enables lower cost, higher productivity, and reduced size of the completed starter. The packing is constituted by an annular section, a jaw which extends in the radial, inward direction from one end of the annular section, and a plurality of projections which are laid out radially at equiangular pitches on the inner surface of the jaw and which have a semicircular section. The annular section of the packing is fitted around the outer peripheral surface of an internal gear assembly and the jaw is held in a compressed state between the end surface of the internal gear assembly and the side surface of the plate. The compressive deformation of the projections varies according to the axial dimension of the internal gear assembly or the plate, thereby absorbing the variations in the axial dimension.
摘要:
The present invention relates to an automatic starting and stopping apparatus for an engine, which prolongs the lives of mechanical components such as a starter motor and which is applicable also to automatic vehicles. The automatic starting and stopping apparatus for an engine comprises a vehicle-to-vehicle distance sensor 29, which detects whether the distance from the preceding vehicle is less than a preset value, a signal color identifying and detecting device 30, which identifies whether the lit color of the signal is yellow or red, a car speed sensor 15, and a control circuit 31, which performs automatic start and stop of the engine in accordance with the detection results of the vehicle-to-vehicle distance sensor 29 and the signal color identifying and detecting apparatus 30. The control circuit 31 carries out automatic stop by cutting off the electric power to the engine ignition circuit 3 if the vehicle-to-vehicle distance is less than the preset value or the signal indicates a yellow or red light and also the car speed is zero, while it supplies electric currents to the starter 8 and the engine ignition circuit to implement automatic start when the vehicle-to-vehicle distance has reached the preset value or more or the lit signal color has changed from red to green.
摘要:
The end of a lead wire of a DC motor composed of twisted wires is formed into a flat shape by welding the twisted wires together, and is inserted or installed through a grommet with the smaller or shorter dimension of the flat shape oriented in the axial direction of the motor.
摘要:
A starter motor in which the plunger of a solenoid switch supplying power to the starter motor also drives a lever through a return spring. The lever is connected on its other end to a pinion which moves along the output shaft of the starter motor to connect it to a ring gear of an engine to be started. The return spring biases the pinion away from the ring gear. The return spring and a drive rod acting on the lever are contained in a hollow of the solenoid plunger.
摘要:
An electric power steering apparatus includes; a DC brush motor, and a boss arranged between an output shaft of the motor and an input shaft driven by the motor, for transmitting a rotational force of the motor from the output shaft to the input shaft by the boss per se. A weight of the boss is equal to or larger than 10% of a weight of a rotor of the motor. An electric power steering apparatus includes; a DC brush motor and a boss arranged between the output shaft of the motor and the input shaft driven by the motor, for transmitting the rotational force of the motor from the output shaft to the input shaft by the boss per se. A moment of inertia of the boss is equal to or larger than 10% of a moment of inertia of the rotor of the motor.
摘要:
An electric power steering apparatus includes; a DC brush motor, and a boss arranged between an output shaft of the motor and an input shaft driven by the motor, for transmitting a rotational force of the motor from the output shaft to the input shaft by the boss per se. A weight of the boss is equal to or larger than 10% of a weight of a rotor of the motor. An electric power steering apparatus includes; a DC brush motor and a boss arranged between the output shaft of the motor and the input shaft driven by the motor, for transmitting the rotational force of the motor from the output shaft to the input shaft by the boss per se. A moment of inertia of the boss is equal to or larger than 10% of a moment of inertia of the rotor of the motor.
摘要:
In an overhang type starter motor, an inner periphery of a front portion of a pinion 5 is engaged with a spline serration 2a formed at a front part of a pinion shaft 2; a spring 8 is disposed at a shoulder portion of an intermediate portion of the pinion 5 so as to urge the pinion 5 toward a pinion stopper 6; and the inner periphery of the rear part 5a of the pinion 5 is in slide contact with an outer diameter portion 2b of the pinion shaft so that the pinion does not incline when it comes to engagement with a ring gear of an engine.