Nissan Leaf EM57 Motor
The Nissan EM57 motor has been used on several different cars over the years.
Mechanical interface
Mounting flange
Coming soon…
Output axle
Coming soon…
There are some interesting alternatives, for example:
Electrical interface
Phase busbars
Coming soon…
Resolver connector
The resolver output is a 8-pin Yasaki RH connector.
| Part | PDM (Male) | Wire Harness (Female) |
|---|---|---|
| Housing | 7282-8855-30 | 7283-8855-30 |
| Terminal | 7114-4415-02 7114-4415-08 7114-4416-02 7114-4416-08 7114-4417-02 7114-4417-08 | 7116-4415-02 7116-4415-08 7116-4416-02 7116-4416-08 7116-4417-02 7116-4417-08 7196-0104-02 |
| Wire seal | 7158-3165-90 7158-3166-60 7158-3167-80 7158-3168-80 | 7158-3165-90 7158-3166-60 7158-3167-80 7158-3168-80 |
pinout:
| Pin | Name | Descriptions |
|---|---|---|
| 1 | Temp | Temperature sensor |
| 2 | Temp | Temperature sensor |
| 3 | Ex | Resolver excitation coil |
| 4 | Sin + | Positive sinus output |
| 5 | Sin - | Negative sinus output |
| 6 | Cos - | Negative cosinus output |
| 7 | Cos + | Positive cosinus output |
| 8 | Ex | Resolver excitation coil |
The resolver calibration is stamped on the motor housing and must be written to the traction inverter after replacing motor/resolver. See YouTube video linked below.
Cooling
The motor needs coolant flowing through the cooling circuit. More info TBD
References
This post is licensed under CC BY 4.0 by the author.