Charging state driving preventer for low speed EVs

Abstract

The invention relates to a charging state driving preventer for low speed EVs. The charging state driving preventer comprises a motor controller, a key start switch, a power source, a charger, a charge jack, an electronic throttle, and a drive motor. The charger is parallelly connected to two ends of the power source. A microcontroller and a no driving switch connected with each other are disposed in the charger. The input end of the microcontroller is connected with the charge jack. One end of the no driving switch is grounded; the other end of the no driving switch is connected with the enable end of the motor controller. When the charge jack is connected with an external charging device for charging, the microcontroller controls the no driving switch to switch off, and the enable end of the motor controller stands by accordingly; when the charge jack is disconnected with the external charging device to stop charging, the microcontroller controls the no driving switch to switch on, and the enable end of the motor controller operates. The charging state driving preventer for low speed EVs has the advantages that a circuit is simple, few electric devices are used, false starting of EVs during the charging state can be effectively avoided, the EVs can be started only when a charge cord is unplugged, and potential safety hazards are avoided.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a charging prohibition device for low-speed electric vehicles. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. At present, the charging port of electric vehicles is set near the left rear door of the car, which is similar to the position of the fuel tank of fuel vehicles. When charging, it is all connected to 220v AC mains. If the driver forgets to unplug the charging cable when starting the vehicle, If the vehicle drives away, it will cause certain personal and vehicle dangers. In order to prevent the occurrence of the above situation, an electric vehicle charging interlock device is usually used, but the cost of the driving charging interlock device is high, and it is controlled by a relay w...

AI Technical Summary

Problems solved by technology

At present, the charging port of electric vehicles is set near the left rear door of the car, which is similar to the fuel tank position of fuel vehicles. When charging, all connections are 220v AC mains. If the driver forgets to unplug the charging cable when starting the vehicle, If the vehicle is driven away, it will cause certain personal and vehicle dangers

In order to prevent the occurrence of the above situation, an electric vehicle charging interlock device is usually used, but the cost of the driving charging interlock device is high, and it is controlled by a relay with contacts. Its structure is complicated and it is not easy to operate.

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