Dual-fuel engine transient torque compensation system, compensation method and vehicle
A technology for transient torque compensation and dual-fuel engines, which is applied in engine control, machines/engines, mechanical equipment, etc., and can solve problems such as inability to meet the driver's driving needs, lack of transient torque compensation for gasoline and diesel dual-fuel engines, etc.
Active Publication Date: 2017-08-25
GREAT WALL MOTOR CO LTD
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Problems solved by technology
[0003] However, because the gasoline and diesel dual-fuel engine cannot flexibly keep the output torque consistent with the required torque during the driving state of the vehicle, it cannot meet the driving needs of the driver.
Moreover, in the current automotive engineering control field, there is no method for compensating the transient torque of the vehicle equipped with gasoline and diesel dual-fuel engines to meet driving needs.
Method used
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[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0032] Such as figure 1 As shown, the dual-fuel engine transient torque compensation system of the present invention includes: a detection unit 1, which is used to detect the boundary parameters in the vehicle; or the fuel injection quantity of gasoline; the control unit 3 is connected to the detection unit 1 and the adjustment unit 2 respectively, and is used to determine the running state of the vehicle and the corresponding compensation amount according to the boundary parameters, and send a control signal to the adjustment unit The unit 2 is configured to enable the adjustment unit 2 to perform an adjustment action.
[0033] The boundary parameters include engine speed, demanded torque, vehicle speed, intake air temperature, intake air pressure and exhaust gas recirculation rate; wherein, the engine spe...
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The invention provides a dual-fuel engine transient torque compensation system, a compensation method and a vehicle. The dual-fuel engine transient torque compensation system includes: a detection unit for detecting boundary parameters in the vehicle; an adjustment unit for adjusting the diesel fuel injection timing, diesel fuel injection quantity and / or gasoline fuel injection quantity; the control unit is respectively connected to the detection unit and the adjustment unit, and is used to determine the running state of the vehicle and the corresponding compensation according to the boundary parameters amount, and send a control signal to the adjustment unit, so that the adjustment unit performs an adjustment action. The dual-fuel engine transient torque compensation system of the present invention can obtain boundary parameters in real time, and compensate the transient torque of the engine in time, so that the output torque matches the required torque to meet driving requirements.
Description
technical field [0001] The invention relates to the field of engines, in particular to a dual-fuel engine transient torque compensation system, a compensation method and a vehicle. Background technique [0002] Gasoline and diesel dual-fuel engines can achieve good ignition performance of gasoline fuel under exhaust gas recirculation conditions. Compared with gasoline engines, fuel efficiency is improved; compared with diesel engines, pollutant emissions such as nitrogen oxides and smoke can be reduced. . Gasoline and diesel dual-fuel engines can improve thermal efficiency, reduce emissions and fuel consumption, and have good economy. Therefore, vehicles provided with gasoline and diesel dual-fuel engines are increasingly accepted by consumers. [0003] However, since the gasoline-diesel dual-fuel engine cannot flexibly keep the output torque consistent with the required torque during the running state of the vehicle, it cannot meet the driving needs of the driver. Moreov...
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IPC IPC(8): F02D43/00
Inventor 赵伟博刘秀会陈世超陈雄伟
Owner GREAT WALL MOTOR CO LTD