A method and device for recovering engine power in plateau environment
A technology of engine power and plateau environment, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problem of low engine power recovery ability, achieve the effect of enhancing power recovery ability, improving fuel efficiency, and improving power recovery ability
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Embodiment 1
[0060] According to atmospheric physics, as altitude increases, atmospheric pressure and density decrease. For example, at an altitude of 4500m, the atmospheric pressure is about 59kPa, and the density is about 0.84kg / m 3 . Generally, the following situations will occur in the plateau environment: the engine combustion air is insufficient, the fuel cannot be fully burned, the engine performance deteriorates, and the output power decreases. In addition, too rich combustible mixture will cause the temperature of the turbine inlet to rise, which threatens the reliability of the turbine. In addition, the exhaust back pressure of the turbine is low in the plateau environment, and the energy of the turbine inlet gas is excessive, which is easy to cause turbocharger damage. In case of overspeed damage. Therefore, in the plateau environment, the fuel supply of the engine is generally reduced to ensure the reliable operation of the turbine. However, after reducing the fuel supply, t...
Embodiment 2
[0136] refer to Figure 5 , shows a structural block diagram of a device for recovering engine power in a plateau environment in Embodiment 2 of the present invention, the device may include: a calculation module 501, a first determination module 502, a second determination module 503, and a third determination module 504 and setting module 505.
[0137] in:
[0138] The calculation module 501 is used to calculate the initial fuel supply amount at the preset engine speed according to the preset engine air-fuel ratio and the initial fuel supply advance angle.
[0139] The first determining module 502 is configured to gradually increase the initial fuel supply amount, and determine an intermediate fuel supply amount at the preset engine speed.
[0140] The first determining module 502 may include:
[0141] The first increasing sub-module is used to gradually increase the fuel supply with the initial fuel supply as the initial value and the first step as the adjustment step; ...
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