Electrocar electronic control system with remote communication function and charge-discharge control method thereof

Abstract

The invention provides an electrocar electronic control system with a remote communication function and a charge-discharge control method thereof. The electronic control system comprises an inspection module, a signal processer, a discharging module, a charging module and a communication module. The signal input end of the signal processor is connected with the signal output end of the inspection module, and the signal output end of the signal processor is separately connected with the signal input end of the discharging module and the signal input end of the charging module; the signal input end of the inspection module is connected with the two ends of a battery pack and the series tapping ends of all module batteries; the signal input end of the communication module is connected with the signal output end of the signal processor or the signal output end of the inspection module. When the electronic control system and the charge-discharge control method are utilized, information data can be provided for an external data receiving device of an electrocar through remote communication, the real-time voltage of the module batteries is subjected to signal collection and processing, the module batteries with the capacity falling behind are controlled to not be deeply discharged or overcharged, and the service life of the battery pack of the electrocar is prolonged.

Description

technical field [0001] The invention relates to the field of power supply control design of an electric vehicle, in particular to an electric vehicle electric control system with remote communication and a charging and discharging control method thereof. Background technique [0002] The power battery pack and its charge and discharge control are one of the technical bottlenecks of electric vehicles. The power battery pack requires high voltage and requires many batteries to be used in series. The cost of charge and discharge management control to a single cell is too high. In practice, it is often chosen to control the module battery , The module battery generally referred to in the industry is a low-voltage battery pack, such as a multi-cell structure of a lead-acid battery, and a lithium battery pack in which the monomers are connected in series and parallel inside, and also specifically refers to a single battery. [0003] The management object of conventional charging a...

AI Technical Summary

Problems solved by technology

[0003] The management object of conventional charging and discharging of electric vehicles is to control the voltage at both ends of the battery pack. When discharging, the module batteries with low capacity in the battery pack will be deeply discharged, and their life will be terminated early. When charging, the module batteries with low capacity will be overcharged and the capacity will be accelerated. Attenuation; There are also technical solutions that control the charging voltage management object to the module battery. In fact, although this technical solution for module battery charging can make each module battery fully charged, because the module battery capacity in the entire battery pack is no longer Equilibrium will cause the module batteries with backward capacity to undergo deeper discharge in the next discharge of the whole group, and accelerate capacity decay

[0004] The reason why power battery packs are difficult to reach the design life in practical use is that the most common technical problem is that the module batteries with backward capacity in the battery pack cannot be found in time. For this reason, the industry hopes to find a way to remotely monitor the capacity of battery packs in series for electric vehicles. Outdated module batteries, technical solutions to effectively prevent the capacity of outdated module batteries from being deeply discharged and overcharged, reducing the cost of using batteries for electric vehicles

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