6results about How to "Avoid undercharging" patented technology

The invention discloses a charging station management method and system, and relates to the field of power management and electric vehicle charging, and the main scheme is as follows: collecting charging equipment data and vehicle data; calculating a plurality of quantized values respectively; calculating a charging demand level CDR according to the multiple quantized values, and comparing the charging demand level CDR with a threshold value to judge the charging demand level; calculating the upper limit QU of the chargeable amount of the battery, further obtaining the optimal charging amount QO, calculating the actual charging power PC at the current moment, further obtaining the effective power PE of actual charging, and obtaining the optimal charging duration TH; calculating a charging position vacancy rate RF, and comparing the charging position vacancy rate RF with a threshold value to distribute charging positions for vehicles with different charging demand levels; calculating a comprehensive risk assessment index R, comparing the comprehensive risk assessment index R with a threshold value to judge whether to give out early warning, calculating adjusted charging power Pnew during early warning, and adjusting a charging strategy through threshold value comparison; calculating a charging cost HK based on the collected data; the method can accurately evaluate the vehicle charging demand, reasonably distributes the charging resources, and guarantees the safe and efficient charging.

The invention relates to the technical field of liquid crystal display control, in particular to a thin film liquid crystal display control panel control method based on time sequence adjustment, which comprises the following steps: applying a test voltage within a frame blanking duration of a thin film liquid crystal display panel, and detecting an aging characterization voltage; determining the establishment delay duration of the output data signal relative to the gate signal; adjusting the starting pulse width of the grid signal according to the established delay duration; determining a common electrode voltage according to the starting pulse width; forming a test frame picture; detecting the response duration of the thin film liquid crystal display panel for displaying the test frame picture, and correcting the matching parameters of the establishment delay duration and the starting pulse width according to the response duration; outputting a corrected establishment delay time length and a corrected starting pulse width according to the matching parameters; and driving the thin film liquid crystal display panel to display an image. According to the invention, the image display stability is improved.

The invention relates to the technical field of solar charging, and discloses a control method for a flexible solar charging assembly of electric equipment, and the method comprises the steps: unfolding the flexible solar charging assembly to cover at least one part of the surface of the electric equipment, and obtaining illumination intensity data corresponding to a current environment, adjusting the electric energy conversion efficiency of the flexible solar charging assembly based on the illumination intensity data; when the electric equipment is in a static state, the flexible solar charging assembly is controlled to be in a maximum unfolding state so as to maximize solar energy absorption; when the electric equipment is in a moving state, the flexible solar charging assembly is partially or completely folded under control so as to absorb solar energy; when the flexible solar charging assembly charges the mobile device, charging state data corresponding to the flexible solar charging assembly and charging demand data corresponding to a battery of the electric device are obtained, and a charging strategy is adjusted based on the charging state data and the charging demand data. According to the scheme, the charging management efficiency of the electric equipment can be improved.

This invention provides a parking charging control method and system for plug-in hybrid heavy-duty trucks, comprising the following steps: real-time monitoring of vehicle status signals; when the vehicle status signals meet preset parking charging conditions, disabling the auxiliary braking function of the auxiliary brake switch and enabling the auxiliary brake switch to adjust parking charging parameters; acquiring the current gear signal of the auxiliary brake switch and resolving the parking charging parameters corresponding to the current gear signal according to a preset mapping relationship; controlling the engine to charge the power battery until the real-time state of charge of the power battery reaches the target state of charge. This invention reuses the vehicle's existing auxiliary brake switch, enabling the switch to switch its function when parking charging conditions are met, transforming it from an auxiliary braking control function to a parking charging parameter adjustment function, thus achieving convenient adjustment of parking charging parameters without adding additional hardware.

The invention provides a method and a system for evaluating the capability of an electric vehicle (EV) aggregator participating in an electric power climbing auxiliary service. The method comprises the following steps: establishing an optimization target model of the EV aggregator participating in the electric power climbing auxiliary service based on the characteristics of the EV aggregator participating in the electric power climbing auxiliary service; checking the risk that the EV aggregator participates in the electric power climbing auxiliary service to obtain a risk cost expected value; and introducing the risk cost expected value as a penalty term into the optimization target model to obtain a final risk aversion decision-making model, and evaluating the capability of the EV aggregator participating in the electric power climbing auxiliary service through the risk aversion decision-making model. According to the method, the uncertainty and the energy consumption demand of the charging behavior of the EV user are considered, an optimization decision model for reporting the charging power and the climbing capacity of the EV aggregator is established, the risks of insufficient charging and insufficient climbing capacity of the user can be well avoided, and the charging plan and the climbing auxiliary service capacity reported to the market are reasonably optimized.

The invention belongs to the technical field of BMS battery management systems, and particularly relates to a two-turn battery replacement intelligent cabinet non-charging diagnosis method, which comprises the following steps: S100, initializing a system, and enabling the system to enter a pre-discharging state; according to the non-charging diagnosis method for the two-turn battery switching intelligent cabinet, the charging state of the lithium battery is divided into the pre-discharging state, the charging state, the discharging state and the protection state by setting S100-S700, so that the state switching of the battery is accurately controlled, the problem of excessive discharging or insufficient charging is avoided, and the effect of prolonging the service life of the battery is achieved. Therefore, the problem that an existing intelligent lithium battery state judgment technology cannot be flexibly optimized and adapted according to an actual application scene is solved, and the problem that the state judgment is limited due to the fact that the state of the battery is automatically judged through discharge current or a front-end chip and special requirements of different application scenes cannot be fully considered is solved.