1.No-load test (inspect charging circuit without load)
In the no-load test, whether the generated voltage is maintained at a constant level (regulated voltage) is cheeked even if the alternator speed Read more Inspection in Charging System
Automotive System
SC Type Automotive Alternator
An SC type alternator adopts a joined segment conductor system (insert the segment conductor and weld it) to the stator winding method. This type of alternator can reduce the resistance value by half comparing Read more SC Type Automotive Alternator
Automotive Output Control by IC Regulator
The following explains the mechanism by which the IC regulator keeps the generated voltage constant and how it operates to achieve this function using a battery sensing type IC regulator as an example.
1.Normal Read more Automotive Output Control by IC Regulator
Regulate Generated Electricity
Self-control for maximum output current
A characteristic of the alternator is that the output current flows almost constant when it exceeds a certain speed (self-control operation).
Therefore, when Read more Regulate Generated Electricity
Alternator with Neutral-Point Voltage
Neutral-point voltage
(1)A conventional alternator uses six diodes to rectify three-phase AC (Alternating Current) into DC (Direct Current). The output voltages generated at the neutral point is utilized Read more Alternator with Neutral-Point Voltage
Principle of the Automotive Alternator
2.Rectification
(1)Mechanism of rectification of alternator
Construction
The actual alternator forms rectification circuit called rectifier as shown in figure 1 to rectify three-phase alternating current Read more Principle of the Automotive Alternator
Function of Automotive charging system
Vehicle is equipped with many electrical devices to drive safely and comfortably. The vehicle requires electricity not only while driving but also while it stops.
Therefore, the vehicle has a battery Read more Function of Automotive charging system
Inspection of the Battery Voltage
When the starter to operate, the battery terminal voltage decreases by a large amount of current flow. Even if the battery voltage is normal before the engine starts, the starter cannot be rotated normally Read more Inspection of the Battery Voltage
Construction of Conventional Starter
Conventional type
1.Construction differences between the conventional type and the reduction type (figure on the left)
2.Engagement/disengagement of the pinion gear
(1)Magnetic switch
The construction Read more Construction of Conventional Starter
Engagement / disengagement mechanism
The engagement/disengagement mechanism has two functions.
Engages the pinion gear with the ring gear.
Disengages the pinion gear from the ring gear.
Engagement mechanism
When the end faces Read more Engagement / disengagement mechanism