Method and device for evaluating fuel consumption quality of engine and transmission efficiency of whole vehicle
A technology of transmission efficiency and engine, which is applied in the evaluation field of the fuel consumption of the engine and the transmission efficiency of the whole vehicle, and can solve the problems of rough evaluation, inability to test uniformly, and inability to know the fuel consumption of the vehicle engine, etc.
Active Publication Date: 2021-09-10
DONGFENG LIUZHOU MOTOR
View PDF17 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] During vehicle development, OEMs usually need to test and evaluate the vehicle's fuel consumption and transmission efficiency, but the existing technology is based on the evaluation of vehicle fuel consumption The average fuel consumption of the vehicle after a certain mileage displayed on the vehicle instrument is used to evaluate the fuel consumption of the vehicle. This method can only make a rough assessment of the overall fuel consumption of the vehicle, and it is impossible to know the vehicle engine under different working conditions. The pros and cons of real-time fuel consumption
For the evaluation of vehicle transmission efficiency, only the single transmission efficiency of the transmission and the driving wheel can be tested separately, and the entire process from the engine to the wheel end cannot be tested uniformly (transmission route: engine-transmission-drive shaft / axle-hub-wheel end) vehicle transmission efficiency
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] Such as figure 1 As shown, an embodiment of the present invention provides a method for evaluating engine fuel consumption and vehicle transmission efficiency, including:
[0038] Step S101: Obtain the universal characteristic data of the engine of the prototype machine, some operating state data of the vehicle to be evaluated when running on the complete vehicle hub, and the test data of the transmission efficiency of the complete vehicle; wherein, each of ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and a device for evaluating the fuel consumption quality of an engine and the transmission efficiency of a whole vehicle. The method comprises the following steps: acquiring engine universal characteristic data of a prototype machine, a plurality of running state data of a to-be-evaluated vehicle running on a rotating hub of the whole vehicle and test data of the transmission efficiency of the whole vehicle, wherein each piece of operation state data comprises working condition data under the corresponding engine working condition and real-time oil consumption corresponding to the working condition data, and the whole vehicle transmission efficiency test data comprises rotating hub inertia, rotating hub resistance coefficient, real-time vehicle speed, real-time acceleration and engine real-time power; according to the universal characteristic data of the engine and the real-time oil consumption, evaluating the oil consumption condition of the to-be-evaluated vehicle engine under each engine working condition; and calculating the transmission efficiency of the whole vehicle according to the rotating hub inertia, the rotating hub resistance coefficient, the real-time vehicle speed, the real-time acceleration and the real-time power of the engine. According to the invention, the precision of oil consumption evaluation can be improved, and the transmission efficiency of the whole vehicle can be evaluated.
Description
technical field [0001] The invention relates to the technical field of vehicle performance detection, in particular to a method and device for evaluating the fuel consumption of an engine and the transmission efficiency of a complete vehicle. Background technique [0002] In vehicle development, OEMs usually need to test and evaluate the fuel consumption and transmission efficiency of the vehicle, but in the existing technology, when evaluating the fuel consumption of the vehicle, it is generally based on the average fuel consumption of the vehicle after a certain mileage displayed on the vehicle instrument To evaluate the fuel consumption of the vehicle, this method can only make a rough assessment of the overall fuel consumption of the vehicle, and it is impossible to know the real-time fuel consumption of the vehicle engine under different working conditions. For the evaluation of vehicle transmission efficiency, only the single transmission efficiency of the transmission...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01M13/02G01M17/007G06F119/14
CPCG06F30/20G01M17/007G01M13/02G06F2119/14
Inventor 黄国海周晓刚何超吴颂黄真
Owner DONGFENG LIUZHOU MOTOR