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Electric vehicle intelligent power control method and device
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An intelligent power control, electric vehicle technology, applied in the field of electric vehicles, can solve the problems of increased power consumption, weak power, and reduced system efficiency, and achieve the effects of extending mileage, high riding comfort, and smooth driving
Active Publication Date: 2022-05-20
TIANJIN AIMA VEHICLE TECH CO LTD
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Problems solved by technology
[0003] The prior art simply relies on increasing the power of the motor or simultaneously increasing the power of the motor and the controller to improve the problem of weak power. On the one hand, it will lead to a substantial increase in the hardware cost of the vehicle, seriously affecting the market price competitiveness of the manufacturer; on the other hand On the one hand, continuous high-power input during low-speed startup or acceleration will reduce system efficiency and significantly increase power consumption, affecting vehicle mileage
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Embodiment 1
[0051] figure 1 It is a flow chart of an electric vehicle intelligent power control method provided by Embodiment 1 of the present invention.
[0052] refer to figure 1 , the method includes the following steps:
[0053] Step S101, obtain the handlebar signal, and monitor the bus current I according to the handlebar signal;
[0054] Here, the electric vehicle receives the handlebar signal when it is powered on, and the controller drives the motor to run with the DC voltage of the battery through PWM modulation and an inverter circuit. The vehicle starts to accelerate from a stationary state, and the controller monitors the bus current I in real time.
[0055] Bus current monitoring process: The controller MCU calculates the controller bus current I by real-time detection of the voltage u across the sampling resistor Rs at the input terminal and according to Ohm's law I=u / r.
[0056]Step S102, if the bus current I is greater than or equal to the first preset current I1, moni...
Embodiment 2
[0077] image 3 It is a schematic diagram of an electric vehicle intelligent power control device provided in Embodiment 2 of the present invention.
[0078] refer to image 3 , the device includes an acquisition module 10 , a monitoring module 20 , a first judgment module 30 , a first adjustment module 40 , a second judgment module 50 , and a second adjustment module 60 .
[0079] An acquisition module 10, configured to acquire a handlebar signal, and monitor the bus current according to the handlebar signal;
[0080] A monitoring module 20, configured to monitor the current vehicle speed within a preset time when the bus current is greater than or equal to the first preset current;
[0081] The first judging module 30 is used to judge whether the current vehicle speed is less than the first preset vehicle speed;
[0082] The first adjustment module 40 is configured to adjust the bus current to a second preset current when the current vehicle speed is lower than the first ...
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Abstract
The present invention provides an intelligent power control method and device for an electric vehicle, comprising: acquiring a handlebar signal, and monitoring the bus current according to the handlebar signal; if the bus current is greater than or equal to the first preset current, monitoring the current vehicle speed within a preset time; Judge whether the current vehicle speed is less than the first preset vehicle speed; if the current vehicle speed is less than the first preset vehicle speed, then adjust the bus current to the second preset current; determine whether the current vehicle speed is greater than the second preset vehicle speed; if the current vehicle speed is greater than the second If the vehicle speed is preset, the bus current is adjusted to the first preset current. The intelligent power control method and device of the electric vehicle can realize the intelligent control of power output without increasing the cost of the whole vehicle, and can immediately output strong power when starting with a heavy load or driving on a climbing section when the power needs to be increased; When the power needs to be increased, the original state is maintained, the power consumption is small, the mileage is extended, the driving is stable, and the user's riding comfort is high.
Description
technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an intelligent power control method and device for electric vehicles. Background technique [0002] In recent years, electric bicycles have become an important means of transportation for people to travel short distances due to their economic benefits, convenient mobility, energy saving and environmental protection. However, electric vehicles currently on the market generally have the problems of weak climbing power and slow acceleration of heavy loads. [0003] The prior art simply relies on increasing the power of the motor or simultaneously increasing the power of the motor and the controller to improve the problem of weak power. On the one hand, it will lead to a substantial increase in the hardware cost of the vehicle and seriously affect the market price competitiveness of the manufacturer; on the other hand On the one hand, continuous high-power input during low...
Claims
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Application Information
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