42results about How to "Reduce Range Anxiety" patented technology

The invention discloses a method for estimating the driving range of an electric car. The method comprises the steps of obtaining a current measuring value of a power battery, and calculating a current status value of the battery; obtaining a historical energy consumption value and the historical driving cycle of the whole car, predicting the future driving cycle, and calculating a predicted value of the future energy consumption of the whole car; predicting the residual usable energy of the power battery under the predicted value of the future energy consumption of the whole car according to the predicted value of the future energy consumption, the current measuring value of the battery and the current status value of the battery through an electricity-heat coupling model of the battery; and calculating the driving range of the electric car according to the predicted value of the future energy consumption of the whole car and the residual usable energy. According to the method, the residual usable energy of the power battery under the future running condition is predicted, and the accurate driving range of the electric car is calculated through prediction of the future driving cycle and by prediction of energy consumption of the car in a future period by combining the energy consumption model of the whole car, so that the mileage anxiety of passengers is reduced.

A thermal energy management system for a vehicle is provided that is configured to supply thermal energy to a passenger compartment of the vehicle. The thermal energy management system may include three thermal fluid loops. The first thermal fluid loop may include a coolant pump circulating a coolant through at least a vehicle battery, a transmission oil cooler of the vehicle, and a chiller such that the coolant is configured to selectively transfer thermal energy from the vehicle battery, the transmission oil cooler, and the chiller. The second thermal fluid loop may circulate oil through the transmission oil cooler. The third thermal fluid loop may circulate a refrigerant through at least the chiller and at least one condenser such that the third thermal fluid loop is configured to transfer thermal energy to the passenger compartment.

A first range, a second range, and a third range are determined for a state-of-charge associated with a battery. The second range is determined based on a first set of information. The third range is determined based on a second set of information different from the first set of information. A map including a first zone associated with the first range, a second zone associated with the second range, and a third zone associated with the third range is displayed.

The invention provides an electric vehicle remaining driving mileage algorithm based on user experience. User driving habit analysis and expected traveling road forecast are conducted according to vehicle historical operation data, the remaining driving mileage is calculated through different algorithms according to user attention focus under different SOCs, and the real remaining driving mileageis reflected as much as possible; as for the electric vehicle remaining driving mileage algorithm, through a compensation algorithm, the remaining driving mileage estimated by the different algorithmscan be in smooth transition during crossing of SOC intervals, and jump is avoided; and optimization of the user experience is emphasized. The electric vehicle remaining driving mileage algorithm doesnot need navigation or a GPRS and is wide in applicability.

The invention provides a thermal management method of an electric automobile and a vehicle. The method comprises the steps: in a vehicle navigation mode, obtaining a navigation route of the vehicle according to the current position of the vehicle and a preset destination position, and segmenting the navigation route to obtain a plurality of navigation road sections; acquiring current environment information of the vehicle and a current vehicle running state; acquiring a thermal management control strategy from a preset thermal management control strategy library according to the road condition corresponding to the next navigation road section of the vehicle, the current environment information and the current vehicle running state; and adopting a thermal management control strategy in the next navigation road section, and controlling a thermal management system of the vehicle correspondingly. By segmenting the navigation route and monitoring the vehicle state and environment information, the optimal thermal management control strategy of each road section is found out, and segmented thermal management control is realized, so that energy can be effectively saved, the energy utilization rate is improved, the endurance mileage of the vehicle is improved, and a guarantee is provided for the achievement of the target mileage.

The invention provides an energy feedback control method and device for an electric vehicle and the vehicle. The method comprises the steps of in a vehicle navigation mode, obtaining a navigation route of the vehicle according to the current position of the vehicle and a preset target position, and segmenting the navigation route to obtain a plurality of road sections; according to the information of the current environment where the vehicle is located, the current vehicle running state and the current residual energy of the vehicle, calculating the travelable mileage; and when the travelable mileage is less than or equal to the current display mileage of the vehicle, when the vehicle travels to the current road section, selecting one brake feedback gear from a plurality of preset brake feedback gears according to the corresponding road condition of the vehicle so as to enable the vehicle to conduct energy feedback on the current road section according to the selected brake feedback gear. According to the displayed mileage target, the navigation route is segmented, the energy recovery state is automatically adjusted according to the road condition of each road section, energy is saved, and achievement of the mileage target is promoted.

The invention provides a charging navigation method, device and terminal, and relates to the technical field of navigation planning. The method comprises the following steps: acquiring a navigation path from a departure place to a destination, and calculating navigation power consumption required by the navigation path; and under the condition that the residual electric quantity of the vehicle at the departure place is smaller than the navigation power consumption, selecting at least one charging station from the navigation path, and adding the at least one charging station to a path point in the navigation path. According to the scheme, the charging station of the route can be planned in advance before the user goes out, and the mileage anxiety and the charging anxiety of the user are reduced.

The invention provides a display mileage updating method and device of an electric vehicle and the vehicle, and the method comprises the steps: obtaining the current vehicle operation state and the current environment information of a vehicle when the change of the driving road condition is recognized; according to a preset reference energy consumption model, acquiring reference energy consumption of the vehicle under the current vehicle running state and the current environment information; calculating the mileage according to the reference energy consumption and the residual energy of the vehicle; and adjusting the updated display mileage according to a preset mileage change rule in the driving process of the current driving road condition according to the drivable mileage and the display mileage currently displayed by the vehicle-mounted instrument. According to the invention, the current display mileage of the vehicle is dynamically adjusted based on the actual travelable mileage of the vehicle, so that the adjusted display mileage change can accord with the current running state of the vehicle, accurate display mileage update can be provided for a user in time, and accurate endurance is realized.

The invention provides an energy distribution method and device for an electric vehicle and the vehicle. The method comprises the steps of obtaining information of the current environment where the vehicle is located and the current vehicle running state; according to a preset reference energy consumption model, obtaining reference energy consumption of the vehicle in the current vehicle running state and the current environment information, wherein the reference energy consumption model is obtained by correcting the actual energy consumption of the vehicle under different vehicle running states and environment information; according to the reference energy consumption and the residual energy, calculating the travelable mileage; determining the target maximum allowable discharge power of the vehicle according to the travelable mileage and the current display mileage of the vehicle; and according to the target maximum allowable discharge power, performing energy distribution on energy consumption accessories of the vehicle. The influence of the current running state and environment of the vehicle on the energy consumption of the vehicle is fully considered, the energy distribution of the energy consumption accessories of the whole vehicle is adjusted in time, and the target mileage is promoted to be achieved.

The invention discloses a charging demand triggering and processing method based on an automatic driving shared taxi. The charging demand triggering and processing method comprises the following steps: S1, calculating the mileage of a scheme with minimum mileage increase; S2, detecting a charging demand of the automatic driving shared taxi; S3, predicting the charging completion time of the automatic driving shared taxi; and S4, processing the charging state of the automatic driving shared taxi in combination with a simulation system. According to the method, the process of'driver decision 'is not needed, the charging response efficiency of the automatic driving shared taxi is improved, and the mileage anxiety of passengers is also reduced. The electric vehicle and the automatic driving taxi are combined for research, and the condition of passenger sharing is considered, so that the unnecessary consumption of energy is reduced to a great extent on the premise that the requirements of passengers are met equally. The charging demand is discussed by using a scheme of increasing the minimum mileage, the remaining mileage of the automatic driving shared taxi can be utilized to the maximum extent, and the charging demand is excited by using less remaining mileage of the automatic driving shared taxi.

A thermal control system includes first and second components. A plurality of coolant conduits fluidly couple the components to define a coolant circuit. A pump is operable to circulate coolant among the conduits. Within the coolant circuit, the first component is upstream of the second component and the pump is upstream of the first component. A controller is configured to selectively operate according to a circuit heating mode, wherein the controller controls the pump at a first speed and controls the first respective component as a thermal source, and a local heating mode, wherein the local heating mode the control controls the pump at a second speed and controls the first respective component as a thermal source. The second speed is less than the first speed. The controller operates in the local heating mode in response to a heating request associated with the second respective component.

The invention discloses an electric vehicle charging management method, and the method can obtain the working state and position of a charging pile in a charging station in real time, can give an alarm to remind a driver in time when there are fewer available charging piles, so as to enable the driver to select a proper charging station for charging. The waiting time of the driver due to the factthat the charging pile in front of the driver is completely occupied or damaged is shortened, and mileage anxiety of the electric vehicle driver is reduced. The invention further discloses an electricvehicle charging management device and system and a computer readable storage medium, which have the same beneficial effects as the electric vehicle charging management method.