First, the engine starts
1. First, turn off the power switch of the vehicle and start the engine in the normal starting mode and precautions. It is worth mentioning that the engine must be started when the power supply is complete.
2, do not need to step on the throttle when starting, stepping on the throttle will not speed up the start speed, because the engine's starting fuel in the vehicle timing, ECU is completely set. Therefore, he will only cause the engine speed to rise immediately to a high speed due to an excessively large throttle after startup, resulting in wasted fuel.
3, cold start, when the ambient temperature is lower than the start warm-up set temperature, the preheating device of the vehicle will automatically light up after the key switch hits the ON position, when the warm-up indicator automatically goes out Immediately start the engine. If the engine is not started successfully, press the last operation method to start the second warm-up. The engine controller ECU will issue some control instructions according to the ambient temperature and the accessories on the vehicle. (1). Control the injection advance angle and fuel injection quantity. (2) Automatically control the preheating of the intake air to perform preheating and postheating; (3) Automatically control the exhaust brake valve to help start, which is conducive to the smooth start of the engine and greatly improves the startability of the electronically controlled engine.
Second, the operation of the engine and the vehicle
1, wading to pay attention to matters: When the vehicle over the surface of the road or rainy weather, to avoid the system into the water and damage and failure, the connection of the connector of the harness must be protected with rubber waterproof ferrules.
2. Minhang home function: In some abnormal situations, the failure of the accelerator pedal sensor, the failure of the crankshaft and the camshaft sensor, the high battery voltage, the failure of the intake pressure sensor, and the engine fault indicator will light up the alarm. The controller operates the controlled engine at a lower speed and a lower load, and the vehicle can be slowly opened to a nearby maintenance station. This is the homecoming function.
3. It is strictly forbidden to disassemble the high-pressure fuel pipe of the engine when the engine is in operation. Since the pressure in the high-pressure fuel pipe is as high as 145 MPa, it cannot be removed quickly when it is disassembled, and the pipe joint slips with a certain gap. Therefore, discharging the high-pressure fuel will cause damage. Human body damage. At the same time, after the engine is shut down, the pressure in the high-pressure tubing has a pressure-retaining delay. Therefore, the high-pressure tubing must be disassembled about 1-2 minutes after the shutdown to ensure safety.
The engine is equipped with an automatic idle protection device. When the engine is idling for a long time, the engine will naturally turn off. The idle stop time of different types of engines is different.
Third, stop
Every day before engine shutdown, the engine should be run for 3-5 minutes, this is not only for the supercharged engine lubrication plays the role of protection, a more important engine.
The controller not only has a limp home function, but also has a memory function. It memorizes the different states of the various sensors of the engine, the driver's operating procedures and habits, and the running conditions of the entire vehicle. When the controller is used again, the ECU will perform various operating conditions for the engine. auto-adjust. Always work with the engine in good condition.
Such as: the accelerator pedal opening is not the same every day, each sensor will appear in the process of varying degrees of wear, through the controller's memory, automatic adjustment of the accelerator pedal opening. It is beneficial to the performance of various operating conditions of the engine.
If the control unit ECU has no memory function, when the entire vehicle runs tens of thousands or more than 100,000 kilometers, the loss of each sensor cannot be memorized when passed to the control unit ECU. The engine operating conditions change at any time, and the performance of the engine is affected. influences. Therefore, depending on the state of the engine, the control unit ECU needs to be recalibrated.
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