Vehicle double-fuel system oil pump control method
A dual-fuel system and control method technology, applied in fuel injection control, electrical control, engine control, etc., can solve problems such as oil pump burnout, achieve the effects of protecting the oil pump, avoiding continuous operation, and improving the service life of equipment
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[0028] In the vehicle dual-fuel system oil pump control method, the dual fuels are fuel oil and gas. The fuel is generally gasoline or diesel, and the gas is generally natural gas. The oil pump control method includes the following five control strategies, which are the KEY-ON mode strategy flow chart and start control in sequence. Strategy flow chart, automatic switching from fuel oil to gas control strategy flow chart, automatic gas switching to fuel oil control strategy flow chart, gas switching to fuel oil control strategy flow chart after startup.
[0029] Such as figure 1 As shown in the flow chart of the KEY-ON mode strategy, this working mode is only a systematic self-check to ensure that the fuel pump is working normally. After the key is turned from KEY-OFF to KEY-ON, the fuel pump will run for 5 seconds to ensure fuel supply. The normal establishment of the oil pressure of the oil system meets the fuel starting requirements.
[0030] Such as figure 2 As shown, th...
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