A method for driving an analog fuel gauge by a digital value of automobile fuel quantity
A technology of simulating oil and digital value, which is applied in the field of driving analog oil meter with digital value of automobile oil quantity, can solve the problems of complicated circuit, hidden danger and high cost, and achieve the effect of reducing production cost.
Inactive Publication Date: 2016-03-30
XUCHANG UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] In view of the current digital oil meter analog display method, not only the circuit is complicated, the cost is high, and the reliability is poor, but also the continuity and smoothness of the oil meter movement are not good, and there are even certain safety hazards
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
[0028] A simple and reliable method for driving an analog oil meter by a digital value of oil quantity of an automobile, the method is realized by a circuit design of an analog oil meter driven by a digital value of oil quantity, and a driving program based on the circuit design; the digital oil quantity Value-driven analog oil meter circuit: a VCC vehicle battery, a current-limiting resistor, a heating wire, and an NPN transistor are connected in series in sequence, and the heating wire is connected to the collector of the NPN transistor, a PWM module, a fixed resistor, and the base of the NPN transistor The emitters of the NPN transistors are connected in series, and the emitters of the NPN transistors are grounded; the digital fuel value drives the analog fuel gauge driver program: the VCC vehicle battery power supply, the current-limiting resistor shunts, and the heating wire connected between the NPN transistor and the current-limiting resistor follows The accumulation 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 relates to a simple and reliable method for driving a simulating oil meter by the numerical value of car oil mass. The method is realized by the circuit design for driving the simulating oil meter by the numerical value of the oil mass, and a driver performed according to the circuit design. The circuit is characterized in that a VCC vehicle-mounted storage battery, a current limiting resistor, a heating wire, an NPN triode are serially connected in sequence; the heating wire is connected with the collector of the NPN triode; bases of a PWM (pulse-width modulation) module, a fixing resistor and the NPN triode are serially connected in sequence; the emitter of the NPN triode is grounded; the driver is executed by the steps that the VCC vehicle-mounted storage battery power supply supplies power, the current limiting resistor shunts, the NPN triode amplifies the current and accelerates the heat accumulating, the acute change problem of a pointer, caused by the fact that an oil floater shakes back and forth in the heat accumulating process, is fast solved, the PWM module simulates the resistor value and adjusts the duty cycle, and an MCU (microprogrammed control unit) outputs a PWM signal by an IO (input output) port to realize the driving for the simulating oil meter.
Description
technical field [0001] The invention relates to a method for driving an analog fuel gauge by a digital value of fuel quantity of an automobile. Background technique [0002] With the development of automotive electronics technology, car digitalization has gradually become a trend and a major selling point for car sellers. The digital upgrade of cars has become the relentless pursuit of car manufacturers. The digital transformation of Shanghai Roewe Automobile has been recognized by the market and is at the forefront of domestically produced cars. The digitization of the fuel level of automobile fuel tanks has been widely used. After more than 200 years of development, the fuel tank display technology of automobiles has been quite stable and mature. A large part of the digital display of fuel tanks is also transformed from the analog fuel gauge. [0003] At present, there are mainly two methods commonly used: Method 1, replace the potentiometer driven by the oil float with ...
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 Patents(China)
IPC IPC(8): G01F23/30
Inventor 赵忠彪王红玲张元敏张广韬
Owner XUCHANG UNIV