Intelligent logistics vehicle energy management method

Abstract

The invention discloses an intelligent logistics vehicle energy management method, and relates to the field of logistics vehicle energy management, and the method comprises an intelligent vehicle controller module which is used for coordinating the power generation, power utilization, power, man-machine conversation and driving route of a whole vehicle, and obtaining an optimal management scheme through calculation for a driver to select; and a range-extended generator module which is used for providing required electric energy for the whole vehicle and is coordinated and controlled by the intelligent whole vehicle controller module. According to the intelligent logistics vehicle energy management method, the whole vehicle controller intelligently and comprehensively formulates the start-stop point of the range-extended generator according to the information such as the battery electric quantity, the power state, the whole driving route (not one trip) of the vehicle on the same day, the power demand of each road section of the route and the like, so that the whole-process power demand is met, and the whole-process power performance is better than that of a pure electric logistics vehicle with the same configuration; the method has the technical characteristics of optimizing the oil-electricity proportion and keeping pure electric range extension, and high-cost and complex hybrid power design is avoided.

Description

technical field [0001] The invention relates to the field of logistics vehicle energy management, in particular to an energy management method for an intelligent logistics vehicle. Background technique [0002] Energy saving, environmental protection, and intelligence are the development directions of automobiles. Since pure electric vehicles meet the mileage mainly by increasing the capacity of power batteries, the cost of power batteries is still very expensive. Excessive redundancy of battery capacity will cause high costs and are only suitable for high-end models. The extended-range electric vehicle only needs to install 40% of the electricity of the pure electric logistics vehicle, which greatly reduces the cost. In the extended-range electric vehicle, the only function of the engine is to generate electricity. After starting, it will continue to work at the optimal working point. Emissions, reliability, etc. are all in a better state. Compared with plug-in hybrids, the...

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Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the range-extended electric logistics vehicle has two energy sources, one is the electric energy stored in the energy storage battery, the other is the oil stored in the range extender, and the drive only uses electric energy, so the increase The start and stop of the range extender has become an important technical field. Chinese patent 201110126665.3 selects a SOC. When the SOC of the battery is higher than the set SOC, the range extender does not work, the vehicle runs in pure electric mode, and the battery SOC is low. After setting the SOC, the range extender starts and enters the power maintenance mode. Under this strategy, when the range-extended electric vehicle needs the range extender to replenish the power, the SOC of the battery is at a low level, which is not good for the battery, and the vehicle's performance under low SOC The power performance is also greatly reduced. Patent 201210465535.7 developed a technology to identify the driving conditions of the vehicle and then select different range extender power generation energy management strategies, and did not solve the problem of power performance decline during the battery maintenance stage. Chinese patent 201511023898.5 further based on the distance of the destination , the driver’s demand for power performance and other information, in the case of high power demand, the method of hybrid power is adopted. Patent application 201910834669.3 further adopts the strategy of power following and fixed power point switching in the power maintenance stage. This idea has also developed to The plug-in hybrid technology route has gone up, and the existing technology does not have a satisfactory energy management strategy for the extended-range electric logistics vehicle. Provide an energy management method for intelligent logistics vehicles

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