1982-1993 of release
Repair and car operation
+ 1.2. Car identification
+ 2. Maintenance
- 3. General data
- 3.1. Cars with petrol engines
3.1.1. Masses and transfer numbers
3.1.2. Operational liquids
+ 3.1.3. Changes in a car design from 1984 to 1986.
- 3.1.4. Changes in a car design from 1987 to 1989.
220.127.116.11. OHC engine
+ 18.104.22.168. Dm3 CVH 1,8 engine
+ 22.214.171.124. DOHC engine
+ 126.96.36.199. Service and repair
+ 188.8.131.52. Coupling
184.108.40.206. Mechanical five-speed transmission of type N
+ 220.127.116.11. Mechanical five-speed transmission of MT 75 type
18.104.22.168. Automatic transmission
22.214.171.124. Forward suspension bracket
- 126.96.36.199. Brake system
188.8.131.52.1. Technical characteristics
184.108.40.206.2. Service and repair
220.127.116.11.3. Adjustment of the hand brake
18.104.22.168.4. Air removal from brake system
22.214.171.124.5. Anti-blocking system
126.96.36.199.6. Check of functioning of ABS
188.8.131.52.7. Hydraulic knot of management
184.108.40.206.8. Sensor of speed of rotation of wheels
+ 220.127.116.11. Electric equipment
18.104.22.168. General data
+ 3.1.5. Changes in a car design with 1990 till February, 1993.
+ 3.2. Cars with diesel engines
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment
Sliding minimum (0 %) when the wheel slides freely, and maximum (100 %) when the wheel is blocked. Maximum efficiency of braking is reached, when sliding makes 15 %. This size also allows to keep stability and controllability of the car.
The role of anti-blocking system consists in restriction of the pressure created in hydraulic system of brakes so that the size of sliding kept about optimum size (15 %). Action of this system should be immediate and separate for each wheel. The system should answer immediately each change of a surface (factor of coupling) and load of the car.
Four sensors (at each wheel of the car) transmit the signals informing on speed of rotation of each wheel of the car in the electronic actuation device.
The electronic actuation device located on the right side under the forward panel, on the basis of received information on unequal speed of rotation of separate wheels (or about their zablokirovaniye) transfers in hydraulic knot of management team of reduction of force of braking (the pressure submitted to a support of a brake) of a wheel which started to test excessive sliding. The electronic actuation device carries out also autodiagnostic function, warning the driver fire of a control bulb about registration of malfunction of electric chains or elements of anti-blocking system. At faulty system ABS of a brake nevertheless are serviceable and function as if this system is not present in the car. Only the control bulb warns the driver that the ABS system does not correct his mistakes.
The hydraulic knot of management contains the main brake cylinder of type a tandem which operates forward brakes, and the hydraulic auxiliary device which operates back brakes. The hydraulic auxiliary device contains six electromagnetic valves, operated by the electronic actuation device, regulating pressure in brakes of separate wheels, and consequently also force of braking. Three inlet electromagnetic valves during normal braking (without sliding) remain open, and three final valves – closed. They are located in contours of the right forward brake, the left forward brake and back brakes.
Such cycle of braking and free rotation of a wheel occurs very quickly (several times in a second) and proceeds to a stop cars or to an otpuskaniye of a pedal of a brake.
The anti-blocking system (ABS) operates at speed of movement more than 7 km/h.