What is an Automotive ECU?

Did traffic lights or cars come first?

From the perspective of whether transportation tools or traffic control signals came first, traffic lights should have preceded vehicles. The origin of traffic lights: The world's first coal-illuminated traffic signal was put into use in London on December 9, 1868. However, its construction and use were originally intended to prevent horse-drawn carriage congestion. This traffic signal combined three arm signals and used red and green gas lamps for nighttime operation, with a police officer operating it via a control lever on the lamp post. The first electric-powered traffic light was developed by an American police officer in 1912, which also only used red and green lights. The origin of automobiles: As for the world's first recognized automobile, it is generally defined by the date when Karl Benz, one of the founders of Mercedes-Benz, obtained the world's first automobile engine patent. This date was January 29, 1886. Therefore, even before the existence of cars, the earliest form of traffic lights had already emerged with the original intention of maintaining orderly traffic and avoiding congestion.

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How to Determine if the Canister Purge Solenoid Valve is Good or Bad?

Methods to determine the condition of the canister purge solenoid valve are as follows: 1. Disconnect the plug of the canister purge solenoid valve: If the suction phenomenon stops, it indicates that the solenoid valve is working normally; if suction continues, it means the solenoid valve is stuck in the open position. 2. Start the engine: Let it idle, then disconnect the pipe connected to the fuel tank. At this point, you can feel a suction phenomenon at the canister's connector, with a frequency of about two to three times per second. If there is no suction, it indicates the solenoid valve is stuck in the closed position. Below is some relevant information about the canister purge solenoid valve: 1. Definition: The canister purge solenoid valve is a device installed in vehicles to reduce air pollution caused by fuel evaporation emissions and simultaneously improve fuel efficiency. When the vehicle starts, the solenoid valve opens, releasing the adsorbed fuel vapor into the intake manifold to be burned in the engine. 2. Function: The canister is responsible for collecting and storing fuel vapor. The canister installed in the vehicle is actually an assembly, with its shell usually made of plastic and filled internally with activated carbon particles that can adsorb vapor. The top is equipped with a purge control valve to regulate the amount of fuel vapor and air entering the intake manifold, as well as a filter to purify the fuel vapor, among other components.

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How to Solve the Transmission Jerking Issue in Focus?

Drain the remaining hydraulic oil from the torque converter; add clean hydraulic oil into the torque converter to clean its interior, then drain the oil. Add clean hydraulic oil into the torque converter again, clean it, and then drain the oil.

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How to Test the Two Wires of an EFI Diesel Fuel Injector?

Connect the two probes of the test lamp to the connector of the fuel injector harness and start the engine. If the test lamp flashes at a certain frequency, it indicates there is no fault. If the test lamp does not light up or remains constantly lit without flashing, it indicates that the fuel injector is malfunctioning and there is a fault.

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What are the methods and steps for car touch-up painting?

Prepare the tools, soak the sandpaper in water, and wrap it around a hard cotton block. Use the wrapped sandpaper to sand the scratched area until it feels smooth to the touch compared to the surrounding paint. Prepare tape and a cloth to cover areas that do not need touch-up painting, then wait for it to dry.

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Does Long-Term Idling with Air Conditioning On Affect the Car?

Long-term idling with the air conditioning on can cause wear and tear on car components and is harmful. In principle, it is not allowed to keep the air conditioning on for extended periods while idling. Moreover, it poses risks to human health. When the engine operates only at idle speed, gasoline combustion becomes incomplete, producing toxic substances such as carbon monoxide. If the car doors and windows remain tightly closed for a long time under these conditions, exhaust fumes can enter the sealed cabin. Accumulation of these fumes to a certain level can lead to carbon monoxide poisoning. Below is some relevant knowledge about idling with air conditioning on: 1. Fuel Consumption Issue: Theoretically, idling with air conditioning on is not a problem, but the biggest issue is undoubtedly fuel consumption, followed by wastage. When driving with air conditioning on, the power consumed by the air conditioning only accounts for a small portion of the engine's idle energy output. However, when idling with air conditioning on, the engine not only drives the air conditioning compressor but also needs to maintain the normal operation of the power steering and brake booster pumps. The latter two functions are completely unnecessary when the car is parked, so keeping them running is a waste of power. 2. Hazards to Humans: It is important to note that even if fuel cost is not a concern, one should not keep the air conditioning on continuously. This is because the air inside the car cannot circulate, and if carbon monoxide from the engine leaks into the cabin, it will gradually accumulate and increase in concentration, leading to poisoning. There have been many cases where people fell asleep and never woke up again. Therefore, it is recommended that car owners, if they really need to rest or wait in the car for a long time, should turn off the car's internal air circulation to ensure a flow of fresh air.

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What is an Automotive ECU?

Did traffic lights or cars come first?

How to Determine if the Canister Purge Solenoid Valve is Good or Bad?

How to Solve the Transmission Jerking Issue in Focus?

How to Test the Two Wires of an EFI Diesel Fuel Injector?

What are the methods and steps for car touch-up painting?

Does Long-Term Idling with Air Conditioning On Affect the Car?

What does 'Oil Pressure Abnormal, Please Turn Off the Engine' mean?

What are the differences between the Haval Chitu and the Haval First Love?

When did China IV vehicles start?

What are the precautions when turning a car?