EPHH control unit. AZLK 2141 (Muscovite)
Service and car repairs of 2141 - the Muscovite.
1. General data
2. Engines
3. Power supply system
4. Cooling system
5. Transmission
6. Running gear
7. Tires, wheels
8. Steering
9. Brake management
10. Body
11. Electric equipment
11.1. Wires and safety locks
11.2. Block of safety locks and relay
11.3. Scheme of internal connections of the block of safety locks and relay
11.4. Rechargeable battery
11.5. Electric equipment installed on cars of fashion. 2141-01, 2335
11.5.1. G-222 generator
11.5.2. Starter 35.3708
11.5.3. System of ignition of the engine of fashion. 2106
11.5.3.1. Possible malfunctions of system of ignition
11.5.3.2. Spark plugs
11.5.3.3. Economizer of Compulsory Idling (ECI)
11.5.3.4. EPHH control unit
11.5.3.4.1. Check of the EPHH control unit
11.5.3.4.2. Possible malfunctions of the EPHH control unit
11.5.3.5. Microswitch
11.5.3.6. EPHH electromagnetic valve
11.5.3.7. Possible malfunctions of the electromagnetic valve
11.5.3.8. Sensor of a control lamp of pressure of oil
11.6. Electric equipment (21412-01, 214122, 214123 and 23352, 233522, 233523)
11.7. Electric equipment (2141-01, 21412-01, 214122, 214123 e 2335, 23352, 233522, 233523)
11.8. Control devices
12. Electrical circuitries
 










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11-5-3-4-blok-upravleniya-ehpkhkh.html

11.5.3.4. EPHH control unit

On the engine of fashion. 2106 the 25.3761 or 2533.3761 EPHH control unit intended for control of the electromagnetic valve is used.

The control unit continuously controls the frequency of rotation of a bent shaft of the engine by measurement of the period of repetition of impulses of system of ignition which are removed from the coil of ignition and "4" blocks move on a conclusion.

With a frequency of rotation of a bent shaft less than 1140±5% min.-1 conclusions "1" and "2" blocks have electric communication, and at the same time current passes through a winding of the electromagnetic valve irrespective of the microswitch.

After increase in frequency of rotation to 1500±5% min.-1 electric communication of conclusions "1" and "2" is broken off and again is restored only after decrease in frequency of rotation of a bent shaft of the engine up to 1140 min.-1.



11.5.3.3.1. Possible malfunctions of a control system of EPHH

11.5.3.4.1. Check of the EPHH control unit