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An electric vehicle range extender and its control method

A technology of electric vehicles and range extenders, which is applied in the direction of electric vehicles, control drives, motors, etc., can solve the problems of poor control effect, high cost of range extenders, and difficult development, so as to reduce fuel efficiency and power control accuracy The effect of improving and improving fuel economy

Inactive Publication Date: 2015-08-19
HUNAN UNIV
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  • Description
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AI Technical Summary

Problems solved by technology

[0013] The invention provides an electric vehicle range extender device with low cost, simple structure and excellent control effect and its control method, which is used to solve the problems of high cost, difficult development and poor control effect of the existing electric vehicle range extender

Method used

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  • An electric vehicle range extender and its control method
  • An electric vehicle range extender and its control method
  • An electric vehicle range extender and its control method

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Embodiment Construction

[0044] The electric vehicle range extender and its control method provided by the present invention are as follows: figure 1 , Figure 5 and Figure 6 shown.

[0045] Such as figure 1 As shown, an electric vehicle range extender, its hardware composition includes engine, engine ECU, electronic throttle controller, DC starter, engine speed sensor, AC permanent magnet synchronous motor, three-phase full-control rectifier, filter capacitor, voltage Sampling resistors, current sensors, freewheeling diodes and three-phase fully-controlled rectification and voltage regulation phase-shift triggers.

[0046] According to different vehicle configurations, the engine is generally a low-power gasoline engine of 10KW~30KW;

[0047] The engine ECU is the same as the ECU of a traditional vehicle. The vehicle controller sends a start command. The engine ECU is responsible for collecting signals such as oil pressure, water temperature, and crankshaft position, and calculating informatio...

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Abstract

The invention discloses an electromobile range extender and a control method. The electromobile range extender consists of an engine, an engine ECU (Electronic Control Unit), an electronic throttle valve controller, a direct current starter, an engine speed sensor, an alternating current permanent magnet synchronous motor, a three-phase full-control rectifier, filter capacitors, voltage sampling resistors, a current sensor, a freewheeling diode and a three-phase full-control rectifying voltage regulation phase-shift trigger, wherein the engine is started by the starter and then drags the alternating current permanent magnet synchronous motor to generate electricity and output the three-phase alternating current voltage to the thyristor three-phase full-control rectifier; after the direct current pulsating voltage output by the rectifier is filtered by the two filter capacitors connected in series, the three-phase full-control rectifying voltage regulation phase-shift trigger acquires the output voltage and current of the range extender to obtain the output power, and adjusts a conduction angle according to the power to realize closed-loop control of the power; and the electronic throttle valve controller acquires the engine speed, adjusts the throttle valve opening, and realizes the closed-loop control of the engine speed. The electromobile range extender and the control method have the advantages of low cost and high control precision.

Description

technical field [0001] The invention mainly relates to an electric vehicle technology, in particular to an electric vehicle range extender and a control method thereof. Background technique [0002] With the depletion of oil resources and the continuous improvement of people's environmental requirements, electric vehicles do not consume oil. Clean and pollution-free is gradually becoming the development direction of the world automobile market. However, limited by the energy density, charging speed and cost of batteries, the price of electric vehicles is much higher than that of ordinary internal combustion engine vehicles, and the driving range is also very limited. Therefore, the consumer acceptance of electric vehicles is still very low, to a large extent. This restricts the development of electric vehicles. [0003] In order to solve the mileage problem caused by battery technology, the extended-range electric vehicle, as a vehicle that can take into account the electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/02B60L15/00B60L50/10
CPCY02T10/7022Y02T10/644Y02T10/7077Y02T10/7241Y02T10/64Y02T10/7072Y02T10/72
Inventor 王耀南申永鹏孟步敏邓凯峰贺俊杰周翔刘东奇袁洁卢月红
Owner HUNAN UNIV
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