Fast-Charging Stations for EV Batteries

Vehicle with improved charging efficiency and reduced component degradation when charging the battery through the motor's neutral point. During travel, the vehicle predicts if the next charging stop will be near and checks if temperatures in the charging group (battery, motor, converter) exceed a threshold. If so, it increases cooling, restricts acceleration and regenerative braking to prevent excessive motor heating during external charging. This prevents motor degradation and failure when charging immediately after hot travel.

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Charging system for batteries in electric vehicles that provides efficient cooling during fast charging to prevent overheating. The system has a separate cooling loop with a refrigeration module, pump, and medium container. The battery connects to the loop via an interface. When charging, the controller monitors battery parameters and activates the loop to circulate coolant through the battery. This prevents temperature spikes during high-current charging. It allows efficient cooling without a large water tank or piping inside the vehicle.

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A charging control device for electric vehicles that efficiently charges the battery at low temperatures by circulating power between multiple parallel chargers connected to the battery. This prevents overcharging and extends battery life in cold weather. The control algorithm switches to a power circulation mode when the battery temperature is low to balance charging between the chargers and prevent hotspots. This allows all chargers to contribute to charging instead of relying solely on one charger, preventing overcharging and prolonging battery life at low temperatures.

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A new energy charging system and charging control method for electric vehicles that improves charging efficiency and safety. The charging system dynamically adjusts voltage and current during charging based on real-time monitoring of input, output, temperature, etc. It calculates mismatch between target and actual electrical parameters and stops charging if excessive. This adaptive charging adapts to specific battery and environmental conditions. The system also has temperature sensors and alarms to prevent overheating. The charging system can communicate through IoT and cloud platforms.

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Selective cooling of charging cables for electric vehicles to improve charging efficiency and reduce charging times. The cooling system circulates coolant through each charging cable and connector individually, allowing temperature control of each component. A processor compares the cable temperature to a threshold and selectively circulates coolant based on the comparison. This enables targeted cooling of cables and connectors rather than supplying coolant to all cables during charging. It reduces cooling capacity needs compared to circulating coolant through all cables. A central chiller can provide coolant for multiple chargers, improving efficiency for multi-charger stations.

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Optimizing low-temperature charging of electric vehicle batteries using an onboard charger and a heating system to maximize charge acceptance at cold temperatures. The vehicle control unit determines the optimal power distribution between battery charging and battery heating based on battery temperature. It sends charging power requests to the charger and heating power requests to the heating system. This allows targeted heating to raise battery temperature before charging, enabling higher charge rates at low temps.

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Battery temperature control system and method for optimizing vehicle-to-vehicle (V2V) charging speed by preconditioning battery temperature. The system calculates the expected charging time based on vehicle state and V2V charger output. If expected time exceeds actual charging time, it activates a battery heater to raise temperature before charging. This avoids sub-optimal charging in cold weather. The vehicle controller coordinates battery temperature control with the V2V charging service schedule.

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Vehicle with external charging capability that can efficiently charge the battery and warm it up simultaneously using selective charging control based on the external power supply and heater power consumption. The vehicle has a controller that determines if the external power is sufficient to charge the battery and heat the battery simultaneously. If not, it prioritizes either charging or heating separately to prevent overcharging. This allows accurate state-of-charge calculation by avoiding current integration errors when both charging and heating draw current.

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Mobile charging system for electric vehicles that improves portability and reduces weight compared to traditional mobile chargers. The system uses the vehicle's own battery and motor/inverter to charge the vehicle instead of having a separate power conversion device in the mobile charger. The mobile charger has a controller, battery management, and charging port. The vehicle has a battery management, motor/inverter, and charging port. When connected, the vehicle's motor/inverter converts the voltage from the mobile charger's battery to charge its own battery. This eliminates the need for a heavy power conversion device in the mobile charger, reducing size and weight. The vehicle's own components handle the voltage conversion.

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A system for managing EV charging stations in a fair and efficient way even when demand exceeds capacity. It uses a controller to queue and prioritize charging requests from drivers and dynamically enable/disable chargers to avoid exceeding power limits. The controller balances demand, prevents overloads, and optimizes charging using techniques like load shedding during peak events.

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Charging electric vehicles without plugging in using charging stations that can be positioned above the vehicle and lowered onto contact plates on the vehicle's roof to establish an electrical connection. The stations have adjustable arms to align with the vehicle and collector braces with conductive pads to contact the vehicle's charge points. This allows automated charging of electric vehicles when parked under the stations.

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A multi-voltage vehicle charging port that prevents incorrect voltage source connection during jump starts. The charging port has separate compartments for 12V and 24V charging terminals. The compartments are locked by solenoids. A voltage sensing circuit detects the charging voltage applied to a sensing terminal. It releases the corresponding solenoid to unlock the compartment with the matching voltage terminal. This prevents connecting a 24V source to a 12V system or vice versa.

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A liquid cooled charging cable for electric vehicle charging stations that allows higher power charging than air cooled cables without becoming too large and heavy. The cable contains a coolant that is pumped around the conductors to cool them and prevent overheating at high charging currents.

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Managing electric vehicle charging stations using mobile devices and cloud servers to enable features like remote monitoring and control, reservations, payments, and data analysis. A mobile device acts as a communication gateway between the charging station and the cloud server. It relays requests for charging sessions, access keys, and other data. The cloud server facilitates charging transactions, validates payments, and provides charging parameters.

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System for managing electric vehicle charging stations using a cloud server and mobile devices. The mobile device acts as a communication intermediary between the charging station and the cloud server. It relays requests for charging sessions, access keys, and charging parameters between the station and server. The cloud server validates credit card info, generates access keys, and sends parameters to the station. This allows charging station transactions without direct cloud access.

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Battery swapping system for electric vehicles that enables quick and convenient battery exchange to avoid downtime from charging. Electric vehicles drive into a battery swap station and have their depleted battery quickly exchanged with a fully charged one. The depleted batteries are then charged for future swaps. This allows EVs to have instant access to charged batteries without waiting for charging, reducing downtime. Multiple swap stations can be placed around an area to extend EV range. The swapping system can be used by fleet vehicles like delivery vans or individuals who subscribe to the service.

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Charging an electric vehicle by using a mobile device as a means for a charging station to communicate with a cloud server. The system enables charging stations to use a mobile device as an intermediary to connect to the cloud server for charging transactions. This allows the cloud server to manage the charging process, validate payments, and provide access keys. The mobile device can be a vehicle component or a separate device.

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Passive cooling system for autonomous vehicle charging components to dissipate heat generated during charging without adding additional active cooling components. It uses a refrigerant-filled heat exchanger that contacts the charging electronics and coil. Heat transfers to the refrigerant which convectively flows to a condenser cooled by the vehicle's existing radiator fan. The refrigerant condenses and flows back to the heat exchanger.

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Battery system and charging method for vehicles like trains to prevent battery degradation and enable efficient warm-up at low temperatures. The charging rate is dynamically adjusted based on battery temperature and state of charge. When the battery temperature is above a threshold, the charging rate can be higher and the state of charge can be lower than normal to allow faster warming without overvoltage issues. This avoids prolonged warming times at low temperatures that could delay schedules. It also prevents excessive charging in mid-SOC where deterioration is higher. This balances warm-up, deterioration, and capacity constraints.

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Smart charging system for electric vehicles that optimizes charging times and rates to reduce strain on power grids and allows charging to fit better with renewable generation. The charger controllers can prioritize charging based on user-entered end times, adjust charge rates, start/stop charging, and communicate with grid controllers.

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