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For you and your car

CRUISE UNDER CONTROL

Known for its alarms, the company Mongoose offers cruise control for Russian cars.

Denis BOROVITSKY

The bustle of the city is behind. Having gained speed, the car irones a highway tape. We turn on the cruise control (in Russian - speed controller), put our feet on our feet and, occasionally adjusting the steering wheel for the trajectory, we talk with a pretty passenger. Smart electronics, clearly tracking the speed you set, will add gas on the rise and “throw” the pedal on the descent. However, the system does not know how to shift gears, and on machines with a “manual” box, this function remains for the driver.

The cruise control consists of an electronic unit - brains, a drive - an actuator, control devices - a joystick, sensors. S-10 and S-20 models have a vacuum, and S-30 electric drive. In the first case, the role of the “parallel leg” is played by a plastic cylinder with a diaphragm, the movement of which is controlled by control valves. Through a special fitting, the cylinder is connected to a vacuum source - the intake manifold of the engine or the vacuum brake booster. The power element of the S-30 actuator is an electric motor. The cruise control drive cable is rigidly connected to the standard gas cable.

Cruise control works like this. Having dispersed the car, the driver presses the joystick key and turns on the system. The electronic unit, receiving information from the sensors installed on the transmission (or engine), remembers the real speed of the car or takes control of the engine speed. Now the foot can be removed from the pedal: when changing the values ​​recorded in the memory (overcoming the ascent or descent), the processor gives a command to the actuator - the gas pedal goes to the floor or, conversely, moves up. But on the road there is an obstacle. The driver presses the gas or brake pedal - cruise control instantly turns off. The maneuver is completed. A click of a button - and the automation again takes over. When shifting to a lower gear, it will not allow “twisting” of the engine, as well as overloading the motor when driving uphill. As soon as the engine speed or vehicle speed becomes critical, the electronics will give up their powers, suggesting the driver to switch on a suitable gear and adjust the speed.