Description
(1) engine speed sensor
"a" 3-way blue connector
Supplier: ÉLECTRICFIL
Role
Role of the engine speed sensor
- To measure the speed of rotation of the engine
- To mark the top dead centre (TDC) of the piston 1
Operation
The target has 60 (58+2) pairs of magnetic poles distributed round the edge, two being absent to mark the top dead centre of the piston 1
"b" detection of the signal
"c" magnetic signal
"d" magnetic track
"e" direction of rotation of the target
A high status corresponds to a south pole
The high/low transition coming after the zone of absence of two poles is representative of the top dead centre (TDC) position
The passing of the north and south poles of the target in front of the engine speed sensor modifies the high status and low status engine speed sensor output voltage
The frequency of the square signals produced by the passing of the poles of the target constitutes the engine's speed of rotation
Data
| description | minimum tolerance | nominal value | maximum tolerance |
|---|---|---|---|
| operating temperature | -40 °C | - | 150 °C |
| supply voltage | - | 5 Volts | - |
| supply current | - | - | 10 mA |
| air gap | 0,5 mm | - | 1,5 mm |
| channel number | allocation of channels of connector |
|---|---|
| 1 | signal |
| 2 | earth |
| 3 | supply 5V |
Learning / initialisation
Not applicable