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Heat Test

2024

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Video: Heat Test

Video: Heat Test
Video: G36 Heat Stress Test 2024, March
Heat Test
Heat Test
Anonim
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CHARGE ELECTRONICS

Our “Patriot” from birth did not want to work in the temperature limits allotted to him. In summer, traffic jams almost boiled, and in winter the heat on the highway was enough only to blow off the windshield. So we lived with a car. In the heat, it was worth stopping, they drove the engine at higher speeds so that the fan spun faster, and for the winter a cardboard was inserted in front of the radiator and caulked cracks. This vanity does not suit a modern car - let it monitor its temperature, and we will help it.

Утренняя прохлада. Днем обещают потепление
Утренняя прохлада. Днем обещают потепление

Morning coolness. In the afternoon, they promise warming. Morning coolness. In the afternoon, they promise warming.

In the standard version, the thermal regime is controlled by a thermostat, an auxiliary electric fan in front of the radiator, and a viscous coupling of the main fan - mechanical and slow devices. And if you charge it to electronics?

From a gearmotor with a built-in programmable microprocessor "Silich" (produced by the same company (www.silich.ru)) and a conventional ball valve, a thermostat with a passage section of 40 mm was obtained. The time required to fully open it is only 3 seconds. (The bypass is constantly open, but its cross section was limited by a throttle washer with a diameter of 10 mm, which was selected experimentally.) It is very simple to set the gear reducers the response temperature by pressing the button on the case according to the on-board computer. Instead of regular ones - a fan on a viscous coupling and an electric one - two electric fans of 360 W each from Kalina will work with programmable power controllers (ЗР, 2008, No. 6). We take the temperature of the working fluid from a sensor installed in the body of a standard thermostat.

Два электровентилятора от «Калины», жалюзи и термостат с «умным» моторедуктором от «Силича» держат температуру мотора в заданном интервале
Два электровентилятора от «Калины», жалюзи и термостат с «умным» моторедуктором от «Силича» держат температуру мотора в заданном интервале

Two electric fans from Kalina, blinds and a thermostat with a smart motor reducer from Silich keep the temperature of the motor in a predetermined interval. Two electric fans from Kalina, blinds and a thermostat with a smart motor reducer from Silich keep the temperature of the motor in a predetermined interval.

Instead of a cardboard on duty in front of the radiator we attach good old blinds. They help warm up the engine faster and keep warm in winter. Their management was entrusted to the same "smart" gear motor. And the radiator itself is now from the Volga. It is wider and can be installed higher in the flow of incoming air. The old one, the old one, with a hole for the "factory" in the lower tank was in the shade and could not efficiently dissipate heat. However, the plant has already solved this problem - on the new machines, the radiators are wide and “draft”.

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We start the engine. The thermostat and shutters are closed, fans are silent. As it warms up, the thermostat comes to life first, periodically opening first at a small angle, and then completely. Following open blinds. But the car stands still, there is no headwind, and fans take turns in the matter. The cycle is complete - all components are functioning as they should. We turn off the motor - the fans work for another 30 seconds, blowing off heat from the motor, behind them the blinds and the thermostat are closed.

Вместо положенной пушки на фаркопе «Патриота» мирное судно
Вместо положенной пушки на фаркопе «Патриота» мирное судно

Instead of the put gun on the towbar "Patriot" a peaceful vessel. Instead of the put gun on the towbar "Patriot" a peaceful vessel.

Test runs with the electronic system showed very good results. On the highway and in traffic jams, the temperature deviation from the setpoint was only 2 ° C. I wonder what will happen on the road?

We start with a freshly plowed field. After one and a half kilometers of arable land driving from the hot collector, the engine compartment noise insulation was smoking. The temperature is still normal - a spread of 3 °. Let's complicate the task - simulate a thermostat breakdown. In this case, it can be opened manually with a screwdriver. The function of maintaining the temperature is picked up by the blinds. And if the radiator is broken? We block the thermostat, leaving only a small circle for the circulation of the liquid. Fans roar at maximum power, blowing the engine, the temperature of the motor has exceeded one hundred, but the liquid does not boil, and you can slowly go.

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The final test for survivability (failure of all electronics at the same time) after such an experiment is children's fun. We open the thermostat and shutters manually, we connect the fans to the standard wiring - here it’s just right to not freeze the motor.

The middle strip of Russia with its meager summers and the Caspian haze in mid-July are two different things. How will the Patriot behave in warm places?

Чтобы часами не стоять в пробках на дороге М4 «Дон», движемся полями по азимуту
Чтобы часами не стоять в пробках на дороге М4 «Дон», движемся полями по азимуту

In order not to spend hours in traffic jams on the M4 Don road, we move in azimuth fields. In order not to spend hours in traffic jams on the M4 Don road, we move in azimuth fields.

PLUS MORTGAGE IN SHADOW

The car is loaded according to the charter, and instead of a cannon on a tow bar (UAZ - a military-bound machine) a trailer weighing one and a half tons. The road to Volgograd, while the window is still + 30 ° С, the cooling system is set to 92 ° С, and the operation of all systems is controlled by the on-board computer. Passed 957 km, average fuel consumption of 15.57 liters. A bit, considering the full load and trailer. And if you slightly warm the engine? After all, the hotter it is (to a reasonable limit, of course), the more economical. We set 102 ° C and head for Astrakhan. On the street it “got warmer” up to 42 ° C, the speed is about a hundred, the hot wind whistles through the open windows, but it does not bring relief, it's still hot! The plastic upholstery of the tunnel in the cabin warmed up from the hot converter to 76 ° C, you can’t grasp the seat adjustment lever with your bare hand, and the motor holds the specified 102–103 ° C. Consumption fell to 14.98 l / 100 km.

But on the asphalt, anyone can go, and if you try on the sand? Off the side of the road are picturesque dunes. We attack them, of course, without a heavy trailer - it is simply impossible with him.

Overboard 50 ° C! The engine barely cranks the wheels that fit into the sand hubs, then a shovel comes into play. Instant fuel consumption exceeds 40 l / 100 km, the fans roar louder than the engine, but they drive only hot air. The temperature jumped to 107 ° C, but the engine does not boil! I can imagine what would happen to him with a standard cooling system - I would have jammed a long time ago.

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