Control method and device for dual-fuel vehicle
A control method and dual-fuel technology, applied in fuel injection control, electrical control, automatic control, etc., can solve problems such as poor accuracy
Active Publication Date: 2020-09-04
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
[0005] The above process is actually to directly use the control signal in the gasoline controller to control the natural gas. However, due to the large difference in the physical characteristics of gasoline and natural gas, the control signal of the gasoline controller may not match the physical characteristics of natural gas, thus Makes the control of the vehicle less accurate
Method used
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[0047] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0048] figure 1 It is a flowchart of a control method for a dual-fuel vehicle provided by an embodiment of the present invention. The method is applied to a dual-fuel vehicle. The dual-fuel vehicle includes at least one electronic controller ECU. The execution subject of the method may be a terminal, and the terminal It can be a vehicle terminal, such as figure 1 As shown, the method includes:
[0049] Step 101: through the ECU, determine the current fuel of the engine in the dual-fuel vehicle;
[0050] Step 102: Obtain the control signal corresponding to the current fuel from the correspondence between the fuel identification and the control signal according to the current fuel, and the control signal includes at least one of the cu...
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The invention discloses a dual-fuel vehicle control method and device, belonging to the field of vehicle electronic control. The method includes: the terminal determines the current fuel of the engine in the dual-fuel vehicle through the ECU; according to the current fuel, the control signal corresponding to the current fuel is obtained from the correspondence between the fuel identification and the control signal, and the control signal includes the current fuel. at least one of fuel injection quantity, ignition angle and torque; obtain the self-learning coefficient of the control signal from the storage space of the ECU; control the engine with the control signal according to the control signal and the self-learning coefficient of the control signal Work with the self-learning coefficient of the control signal. Since the terminal can identify the current fuel, and based on the fuel identification of the current fuel, obtain the control signal corresponding to the current fuel, thereby improving the accuracy of controlling the dual-fuel vehicle.
Description
technical field [0001] The invention relates to the technical field of vehicle electronic control, in particular to a control method and device for a dual-fuel vehicle. Background technique [0002] We all know that gasoline is the main fuel for most vehicles. However, with the continuous development and utilization of natural gas resources, natural gas has gradually become one of the main fuels for vehicles due to its low cost of use. In many dual-fuel vehicles, both gasoline and natural gas are used to provide power. During the driving of the dual-fuel vehicle, when the gasoline is insufficient, the dual-fuel vehicle can switch to use natural gas as the fuel for providing power. [0003] In existing dual-fuel vehicles, a natural gas controller is usually added to the original gasoline-fueled vehicle. When it is necessary to switch the fuel of the dual-fuel vehicle from gasoline to natural gas, the dual-fuel vehicle obtains gasoline control through the natural gas control...
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IPC IPC(8): F02D41/30F02D41/24F02P5/15F02D19/06
CPCF02D19/0647F02D41/0025F02D41/2438F02D41/2451F02D41/3094F02D2250/18F02P5/1502Y02T10/30
Inventor 祁克光杨俊伟全书鹏李东敦邓永娣
Owner CHERY AUTOMOBILE CO LTD