Estimated charging time

By determining the current vehicle range and range selection of the electric vehicle, calculating the intermediate charging range and estimated charging time, the problem of inaccurate charging time information in the prior art is solved, and more useful charging time estimates are provided to meet the driver's needs.

CN115635855BActive Publication Date: 2025-08-19RIVIAN HOLDINGS LLC
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Patent Information

Application Number
CN202111540852.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-07-19
Filing Date
2021-12-16
Publication Date
2025-08-19
Estimated Expiration
2041-12-16

AI Technical Summary

Technical Problem

In the prior art, charging time estimates of electric vehicles tend to provide full charge time information, while many drivers only need to partially charge, resulting in inaccurate and useful information.

Method used

Systems and methods are provided to determine the current vehicle range and range selection of the electric vehicle through processing circuits, calculate the intermediate charging range and an estimated charging time, and present on a display, including the intermediate charging range and an estimated time reaching the range.

Benefits of technology

Provide drivers with more accurate charging time estimates to meet their current or predicted needs and reduce waiting time at charging stations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure relates to charging time estimation. Systems and methods for estimating charging time for an electric vehicle are provided. A current vehicle range of the electric vehicle may be determined, and a range selection for the electric vehicle may be determined. Based on the current vehicle range and a charging range associated with the range selection, an intermediate charging range between the current vehicle range and the charging range associated with the range selection may be determined. An estimated charging time for charging the electric vehicle to the intermediate charging range may be determined, and an indication of the intermediate charging range and the estimated charging time to reach the intermediate charging range may be generated for presentation.
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Description

Technical Field

[0001] The present disclosure relates to charging time estimation. Background Art

[0002] Electric vehicles often provide charging information to the driver regarding the charge level of the vehicle's battery. In one approach, the driver is shown the amount of time the battery needs to be charged to reach a full charge, such as 100%. However, many drivers may not currently require a fully charged (or nearly fully charged) battery, and therefore, receiving an estimate of how long it will take to reach a full charge level may not be helpful. Summary of the Invention

[0003] According to the present disclosure, systems and methods are provided to improve the selection and presentation of charging range set points and estimated charging times to reach the charging range set points, so as to provide more useful information to the driver of an electric vehicle (e.g., when charging the electric vehicle or in other situations). Such presented information enables the driver to determine the appropriate charging range and estimated charging time required for the electric vehicle to meet the driver's current or predicted needs without spending an excessive amount of time at a charging station. In some embodiments, based on the driver's history, one or more suggested destinations and the corresponding charging ranges and associated charging times that enable the electric vehicle to reach at least the suggested destinations can be conveniently presented to the driver of the electric vehicle in an easily digestible format.

[0004] According to the present disclosure, a system and method for estimating a charging time for an electric vehicle is provided. The system and method may include a display and processing circuitry configured to determine a current vehicle range of the electric vehicle, determine a range selection for the electric vehicle, and determine an intermediate charging range between the current vehicle range and the range selection based on the current vehicle range and a charging range associated with the range selection. An estimated charging time for charging the electric vehicle to the intermediate charging range may then be determined, and an indication of the intermediate charging range and the estimated charging time to reach the intermediate charging range may be generated for presentation on the display.

[0005] In some embodiments, the processing circuitry is configured to determine a range selection based on a vehicle destination or by receiving a user-input range selection, wherein the user-input range selection may correspond to a use selection. The use selection may correspond to a daily use selection, an extended use selection, or a travel use selection, each of the daily use selection, the extended use selection, and the travel use selection being associated with a corresponding distance estimate.

[0006] In some embodiments, the indication of the intermediate charge range includes a distance (eg, number of miles or kilometers) that the electric vehicle can be driven at the intermediate charge range. In some embodiments, the intermediate charge range is less than 80% of the charge capacity of the electric vehicle's battery.

[0007] In some embodiments, the processing circuit is configured to determine the intermediate charging range by: monitoring a driving history of the electric vehicle; identifying an expected navigation location of the electric vehicle based on the driving history; and determining a charging range that enables the electric vehicle to reach the expected navigation location as the intermediate charging range.

[0008] In some embodiments, the processing circuitry may be configured to determine the intermediate charge range by: referencing a lookup table stored in a memory, the lookup table indicating a plurality of intermediate charge range values and corresponding current vehicle range values and corresponding charge range values associated with respective range selections; and determining the intermediate charge range using the lookup table and based on the determined current vehicle range and the charge range associated with the determined range selection.

[0009] In some embodiments, the processing circuit is configured to determine the intermediate charging range by: monitoring a driving history of the electric vehicle; and identifying a plurality of expected navigation locations for the electric vehicle based on the driving history. A plurality of intermediate charging ranges may be determined, each respective intermediate charging range enabling the electric vehicle to reach a respective one of the plurality of identified expected navigation locations, and the processing circuit is configured to generate for presentation a plurality of indications corresponding to the plurality of expected navigation locations and a plurality of indications of the corresponding intermediate charging ranges associated with the plurality of expected navigation locations, respectively, to generate for presentation an indication of the intermediate charging range and each estimated charging time to reach the intermediate charging range.

[0010] In some embodiments, the processing circuit is further configured to determine that the electric vehicle is charging at a DC fast charging station, and based on determining that the electric vehicle is charging at the DC fast charging station, determine an estimated charging time to charge the electric vehicle to the intermediate charging range.

[0011] In some embodiments, the processing circuit is further configured to generate a state of charge gauge for presentation, wherein a first position of the state of charge gauge represents the current vehicle range and a first marking indication at a second position of the state of charge gauge represents the intermediate charge range.

[0012] In some embodiments, the processing circuitry is further configured to generate, for presentation at a third position of the state of charge gauge: a second marker indicator representing a charging range associated with a charging range determined based on the range selection, wherein the third position is positioned farther along the state of charge gauge than the first and second positions; and an estimated charging time to reach the charging range associated with the range selection. In response to determining that the current vehicle range has reached the intermediate charging range, the system and method may modify generation of the first marker indicator associated with the intermediate charging range for presentation, and continue to generate the second marker indicator and the estimated charging time to reach the range selection charging range for presentation.

[0013] In some embodiments, a non-transitory computer-readable medium is provided having non-transitory computer-readable instructions encoded thereon that, when executed by a processor, cause the processor to: determine a current vehicle range of the electric vehicle; determine a range selection for the electric vehicle; determine an intermediate charge range between the current vehicle range and the range selection based on the current vehicle range and the range selection; determine an estimated charge time to charge the electric vehicle to the intermediate charge range; and generate an indication of the intermediate charge range and the estimated charge time to reach the intermediate charge range for presentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present disclosure will be described in detail with reference to the following drawings, according to one or more embodiments. The drawings are provided for illustration purposes only and depict only typical or exemplary embodiments. These drawings are provided to facilitate understanding of the concepts disclosed herein and should not be construed as limiting the breadth, scope, or applicability of these concepts. It should be noted that for clarity and ease of illustration, these drawings are not necessarily drawn to scale.

[0015] Figure 1 A block diagram illustrating components of a system for an electric vehicle for providing information including an intermediate charging range and an estimated time to reach the intermediate charging range according to some embodiments of the present disclosure is shown;

[0016] Figure 2 shows example information displayed to a driver of an electric vehicle over time, including an intermediate charging range and an estimated time to reach the intermediate charging range, according to some embodiments of the present disclosure;

[0017] Figure 3 shows an example graphical user interface providing information including an intermediate charging range and an estimated time to reach the intermediate charging range according to some embodiments of the present disclosure;

[0018] Figure 4shows an example technique for generating a graphical user interface that provides information including an intermediate charging range and an estimated time to reach the intermediate charging range, according to some embodiments of the present disclosure;

[0019] Figure 5 shows an example suggesting multiple destinations based on the current vehicle location according to some embodiments of the present disclosure;

[0020] Figure 6 A flowchart illustrating an example process for providing information including an intermediate charging range and an estimated time to reach the intermediate charging range according to some embodiments of the present disclosure is shown;

[0021] Figure 7 A flowchart illustrating an example process for providing information including an intermediate charging range and an estimated time to reach the intermediate charging range according to some embodiments of the present disclosure; and

[0022] Figure 8 A flow chart showing an illustrative process for determining whether to provide a spider map of suggested destinations, according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0023] The present disclosure relates to improved techniques for providing charge information to a driver of an electric vehicle, and more particularly to determining an intermediate charge range between the current vehicle range and a charge range associated with the range selection based on the current vehicle range and a range selection of the electric vehicle, and generating an indication of the intermediate charge range and an estimated charge time to reach the intermediate charge range for presentation at a display.

[0024] Figure 1 A block diagram illustrating components of a system 100 for an electric vehicle 101 for providing information including an intermediate charging range and an estimated time to reach the intermediate charging range to a driver of the electric vehicle 101, in accordance with some embodiments of the present disclosure. The vehicle 101 may be an automobile (e.g., a sports car, a sedan, a truck, an SUV, a bus), a motorcycle, an aircraft (e.g., a drone), a watercraft (e.g., a boat), or any other type of vehicle.

[0025] Vehicle 101 may include processing circuitry 102, which may include a processor 104 and memory 106. Processor 104 may include a hardware processor, a software processor (e.g., a processor emulated using a virtual machine), or any combination thereof. In some embodiments, the combination of processor 104 and memory 106 may be referred to as processing circuitry 102 of vehicle 101. In some embodiments, processor 104 alone may be referred to as processing circuitry 102 of vehicle 101. Memory 106 may include a hardware element for non-transitory storage of commands or instructions that, when executed by processor 104, cause processor 104 to operate vehicle 101 in accordance with the embodiments described above and below. Processing circuitry 102 may be communicatively connected to components of vehicle 101 via one or more wires or via a wireless connection.

[0026] Processing circuit 102 is communicatively connected to a battery system 108, which can be configured to supply power to one or more components of vehicle 101 during operation. In some embodiments, vehicle 101 can be an electric vehicle or a hybrid electric vehicle. Battery system 108 can include a battery 110, which can include one or more battery modules. In some embodiments, battery 110 can be a 180 kWh battery pack or a 135 kWh battery pack. Battery system 108 can also include an onboard charger 112 that manages the flow of power from battery 110 (e.g., performing AC-DC conversion when battery charger 114 is an AC charger), as well as any other suitable components. In some embodiments, onboard charger 112 can include a connector for interfacing with battery charger 114. Battery system 108 can be configured to manage the charging of battery 110, which can include measuring one or more characteristics of battery 110, identifying whether a fault has occurred, supplying power to components of vehicle 101, communicating with battery charger 114, any other suitable actions, or any combination thereof. The battery system 108 may include, for example, electrical components (e.g., switches, busbars, resistors, capacitors), control circuitry (e.g., for controlling appropriate electrical components), and measurement devices (e.g., for measuring voltage, current, impedance, frequency, temperature, or another parameter). The battery system 108 may provide charging status information to the processing circuit 102. The charging status information includes, for example, the charge level, whether the battery is charged, the charging current, the charging voltage, the charging mode, and whether a charging fault exists.

[0027] In some embodiments, the electric vehicle 101 may be plugged into or otherwise connected to the battery charger 114 via a cable (e.g., having an SAE J1772 charging plug, a CCS connector, etc.) having more than one conductor of a suitable gauge. Such a cable may include conductors for carrying charging current and conductors for transmitting information. It should be understood that any suitable lead arrangement may be used in accordance with the present disclosure.

[0028] Battery charger 114 can be connected to a power source, such as a power grid, solar panels, a generator, a wind turbine, or another vehicle, and can be configured to provide charging current to battery 110 of electric vehicle 101 at a suitable charging voltage. In some embodiments, battery charger 114 can correspond to a charger at a DC station (e.g., a DC fast charging station) or an AC station. Battery charger 114 can be, for example, a fixed charging station (e.g., a charging station installed in a public location or at a user's home) or a portable charger (e.g., a charger connected to a portable generator, a portable solar panel, or another vehicle). In some embodiments, battery charger 114 is capable of charging battery 110 at one or more voltages under one or more current limits. For example, battery charger 114 can receive information from battery system 108 indicating the voltage, current, or both that can be used to charge electric vehicle 101. Battery charger 114 can provide a charging current limited by one or more constraints. For example, electric vehicle 101 can transmit the required charging current to battery charger 114. In another example, a cable type can have a maximum associated current capacity based on insulation and heat transfer considerations.

[0029] In some embodiments, battery charger 114 and onboard charger 112 support both current flow into and out of battery 110 through the coupling. For example, during vehicle-to-vehicle charging or vehicle-to-grid power supply, battery charger 110 and / or onboard charger 112 may direct power from battery 110 to a power source coupled to battery charger 114, such as the battery of another vehicle or the grid.

[0030] An image sensor 128 (e.g., a camera) may be communicatively coupled to processing circuitry 102 (e.g., via sensor interface 118) and positioned at any suitable location inside or outside vehicle 101. In some embodiments, image sensor 128 may capture images of a destination being traveled to by vehicle 101 to identify the driving habits of vehicle 101. Processing circuitry 102 may be communicatively coupled to input interface 122 (e.g., a steering wheel, touchscreen display, buttons, knobs, microphone or other audio capture device, etc.) via input circuitry 116. In some embodiments, the driver of vehicle 101 may be allowed to select certain settings related to the operation of vehicle 101 (e.g., input range selection, etc.). In some embodiments, processing circuitry 102 may be communicatively coupled to a navigation system, such as vehicle 101's global positioning system (GPS) system 134, wherein the driver may interact with the GPS system via input interface 122. GPS system 134 may communicate with multiple satellites to determine the vehicle's location and provide navigation directions to processing circuitry 102. As another example, the positioning device can operate based on terrestrial signals (e.g., mobile phone signals, Wi-Fi signals, or ultra-wideband signals) to determine the location of the electric vehicle 101. The determined location can be in any suitable form, such as geographic coordinates, a street address, a nearby landmark, such as the logo of the nearest charging station, or a marked location associated with the vehicle (e.g., the location of the user's home stored in the memory 106). In some embodiments, the processing circuit 102 uses the determined location to identify whether the vehicle is within a threshold range of the marked location (e.g., within a certain range from the charging station). In some embodiments, the battery system 108 can use the determined location to identify whether the battery charger 110 is a home charging station or a non-home charging station (e.g., a public charging station, another vehicle, a generator, etc.).

[0031] Processing circuit 102 may be communicatively connected to display 130 and speaker 132 via output circuit 120. Display 130 may be located on the dashboard of vehicle 101 and / or a head-up display on the windshield of vehicle 101. Additionally or alternatively, display 130 may be visible on the exterior of the vehicle (e.g., the front dashboard, a dual-pillar support) and / or on a screen associated with battery charger 114. For example, an interface for GPS system 134 or an infotainment system may be generated for display. Display 130 may include an LCD display, an OLED display, an LED display, or any other type of display. In some embodiments, display 130 may provide the driver with intermediate charge range information and estimated charge time information based on information output by battery system 108. Speaker 132 may be located anywhere within the cabin of vehicle 101, such as on the dashboard of vehicle 101 or on the interior portion of a door. In some embodiments, speaker 132 may be configured to provide an audio alert related to intermediate charge range information and estimated charge time information based on information output by battery system 108.

[0032] Processing circuit 102 may be communicatively connected (e.g., via sensor interface 118) to an orientation sensor 124, which may be an inclinometer, an accelerometer, an inclinometer, any other distance sensor, or any combination thereof, and may be configured to provide a vehicle orientation value (e.g., vehicle distance and / or vehicle roll) to processing circuit 102. Speed sensor 126 may be one of a speedometer, a GPS sensor, etc., or any combination thereof, and may be configured to provide a reading of the vehicle's current speed to processing circuit 102.

[0033] In some embodiments, processing circuitry 102 may communicate with a user device 138 (e.g., a mobile device, a computer, a key fob, etc.) (e.g., via communication circuitry 136). Such a connection may be wired or wireless. In some embodiments, user device 138 may execute instructions stored in memory to run a battery range status application based on information output by battery system 108, for example, to provide the application with intermediate charge range information and estimated charge time information on user device 138.

[0034] It should be understood that Figure 1 Only some components of the vehicle 101 are shown, and it should be understood that the vehicle 101 also includes other elements typically found in a vehicle (e.g., an electric vehicle), such as a motor, brakes, wheels, wheel controls, turn signals, windows, doors, etc.

[0035] Figure 2Example information displayed to the driver of an electric vehicle over time, including an intermediate charging range and an estimated time to reach the intermediate charging range, according to some embodiments of the present disclosure, is shown. Examples of information displayed during three time periods are indicated as 200, 201, and 203 in order of appearance. A state of charge gauge 205 can be displayed to the driver of electric vehicle 101 via a graphical user interface (GUI) at display 130 and / or a display of user device 138 and / or a display of charger 114 to indicate the charge level of battery 110. At 200, state of charge gauge 205 can be displayed based on battery status information received from battery system 108 (and / or GPS information from GPS 134), for example, in the event that vehicle 101 has arrived at a location (e.g., a charging station) where battery charger 114 is located, where battery 110 of vehicle 101 has a current vehicle range (e.g., 45 miles) corresponding to an indicated charge level 202. In some embodiments, an indication of the current vehicle range 209 can be provided in a first position associated with indication 202 of the current charge level. In some embodiments, a position along the state of charge gauge 205 (e.g., in the x or y direction) can represent different states of charge (SOCs) and / or corresponding charge ranges associated with the represented SOC, where movement in a particular direction (e.g., when moving from the left side of the state of charge gauge 205 to the right side of the state of charge gauge 205) can represent an increase in SOC and / or range. The state of charge gauge 205 can be arranged in any suitable manner, for example, the state of charge gauge 205 can correspond to any suitable shape (e.g., such as a dial where indications of different SOCs and / or associated ranges can be depicted at different positions along the dial in a clockwise direction) and can be depicted using any suitable color combination (e.g., when indication 202 of the current charge level is close to indication 204, a particular color can be used for indication 204 to emphasize its position to the user).

[0036] In some embodiments, processing circuitry 102 may receive input from a driver via input interface 122 that specifies a range selection for electric vehicle 101. For example, a plurality of range selection options may be provided to the driver, each corresponding to the type and / or amount of driving the driver anticipates for electric vehicle 101 during a particular time period (e.g., a day). In some embodiments, the range selection may correspond to a vehicle destination (e.g., a destination selected by the driver via GPS 134 and / or user device 138, or a possible destination predicted based on the vehicle's driving history stored in memory 106 and / or information received from user device 138). In some embodiments, the charge range indicated at 212 and associated with the range selection may be determined based on a standard charge range (e.g., 80% of the capacity of battery 110 of vehicle 101). The standard charge range may correspond to a charge range of battery 110 that is sufficiently close to a fully charged battery, but not at a fully charged state (e.g., because starting at a low charge may take less time, or the same amount of time, to reach 80% of the capacity of battery 110 compared to the time it takes to charge battery 110 from 80% to 100%).

[0037] The state of charge gauge 205 may be associated with a first marker indication 204 at a location (e.g., a second location) corresponding to a charge level that enables the vehicle 101 to travel an intermediate charge range (e.g., expressed in miles or kilometers) indicated at 206, and an estimated charging time indicated at 208 to reach the charge level associated with the intermediate charge range indicated at 206. The state of charge gauge 205 may also include a second marker indication 210 at a location (e.g., a third location) corresponding to a charge level that enables the vehicle 101 to travel a charge range indicated at 212 corresponding to a range selection (e.g., input by a user or based on the vehicle's destination), and an estimated charging time indicated at 214 to reach such charge range indicated at 212. When calculating the estimated charging times 208, 214, the processing circuitry 102 may take into account a type of battery charger 114 (e.g., a DC fast charger). As the charge level indicated at 202 increases during charging, the estimated charging times indicated at 208 and 214, respectively, may be continuously updated to show decreasing estimated times at the display 130. The indicia (e.g., first indicia indication 204 and / or second indicia indication 210) may be represented in any suitable manner, for example, the indicia may include a visible presentation feature (e.g., the color, shading, or shape of the indicia) that distinguishes the indicia from other charge level indications depicted in the charge level status meter 205.

[0038] In some embodiments, processing circuitry 102 may determine the intermediate charge range indicated at 206 based at least in part on the driving history of vehicle 101 stored in memory 106. For example, GPS 134 may receive input requesting directions to navigate vehicle 101 to a previously traveled destination (e.g., a family member's home) that is 300 miles away. Furthermore, processing circuitry 102 may determine that in the past, the driver of vehicle 101 took a detour (e.g., stopping at a hotel) en route to the same destination (e.g., approximately 140 miles away from the current location). Such information may be stored in memory 106 and / or user device 138 in association with the user profile of the driver of vehicle 101. In this example, processing circuitry 102 may (e.g., in response to receiving a user selection to take the suggested detour, or the system determining to provide a detour as a suggested option) set the charging range indicated at 212 to 320 miles (e.g., including a 20-mile buffer beyond the range required to reach the destination) and may set the intermediate charging range indicated at 206 to 150 miles (e.g., including a 10-mile buffer beyond the range required to reach the detour) to account for the anticipated detour. Processing circuitry 102 may cause first marker indication 204 to be displayed to provide the driver with an indication that a full charge or substantially full charge of the charging range indicated at 212 may not be required at this time. In some embodiments, processing circuitry 102 may check whether a charging station is located at or near the anticipated detour to enable vehicle 101 to further charge at the detour in order to reach the final destination (e.g., a family member's home 300 miles away, which may be the basis for charging range 212). In some embodiments, the intermediate charge range indicated at 206 may present an indication of a location deemed relevant based on driving history, and the system may optionally receive input from the driver to modify the location (and thus update the intermediate charge range indicated at 206 based on the modified location). In some embodiments, the aforementioned Tables 1-4 may show standard values and / or be populated with personalized values, or any combination thereof.

[0039] In other examples, the intermediate range and the marker indication may be based on a user's range selection, which may be determined by the user's selection of a destination or a general usage range selection (e.g., "Trip," "Extended," or "Daily"). For example, Tables 1-4 shown below illustrate example information that may be stored in memory 106 and used by processing circuitry 102 and output circuitry 120 to determine the location of marker indications 204 and 210 and the intermediate charge range indicated at 206. Alternatively or additionally, any suitable algorithm may be employed to determine the location of marker indications 204 and 210, taking the current vehicle range and range selection (and optionally the driving history of vehicle 101) as inputs. In some embodiments, input circuitry 116 may receive, via input interface 122, a usage selection associated with a range selection corresponding to one of "Trip," "Extended," and "Daily" based on the projected travel volume of vehicle 101 within a particular time period. For example, a range selection of "Daily" might be appropriate for a user who expects to do a lot of driving around town, while a range selection of "Tour" might be appropriate for a user who expects to take long trips in vehicle 101, and a selection of "Extended" might be somewhere in between. Such a selection (or other input of a vehicle destination) may enable processing circuitry 102 to determine that a full charge of battery 110 may not be required at the current time. In some embodiments, a starting range for vehicle 101 (i.e., current vehicle range) may be referenced in the table based on the number of miles (Tables 1-2) or state of charge (Tables 3-4) that vehicle 101 can travel. In some embodiments, processing circuitry 102 may be configured to perform rounding of mileage values in the following table when displaying such values to the user (e.g., if a trip corresponds to 272 miles, rounding of a value of 275 miles or 300 miles may be performed for display). In some embodiments, processing may be performed based on percentages in the following table rather than actual mileage or state of charge values. hereinafter in conjunction with Figure 4 The manner in which the positions of the marker indications 208, 210 may be determined using Tables 1-4 is explained in greater detail.

[0040] Table 1

[0041]

[0042] Table 2

[0043]

[0044]

[0045] Table 3

[0046]

[0047] Table 4

[0048]

[0049] At 201, processing circuitry 102 may determine, based on charging information received from battery system 108, that the current charge level indicated at 224 depicted in state of charge gauge 205 (corresponding to the current charge range indicated at 211, e.g., 151 miles) has equaled or exceeded the intermediate charge range associated with first marker indication 204, indicated at 206. Accordingly, processing circuitry 102 and / or output circuitry 116 may modify the appearance or presentation of first marker indication 204 and / or one or more of indications 206, 208 of the intermediate charge range and the estimated time to reach the intermediate charge range, respectively (e.g., cease generating one or more of first marker indication 204 and / or indication 206 of the intermediate charge range and indication 208 of the estimated time to reach the intermediate charge range for display, and / or gray out first marker indication 204 and / or one or more of indications 206, 208 so that these indications are less prominent and not emphasized to the driver, etc.). In some embodiments, a notification may be output (e.g., at display 130 and / or user device 138) indicating to the driver that the intermediate charge range indicated at 206 has been reached. In some embodiments, the charging time indicated at 214 may continue to update (e.g., decrease) as the charge level indicated at 224 and corresponding to the current SOC of battery 110 increases, and second marker indication 210 may continue to be generated for display by processing circuitry 102. In some embodiments, second marker indication 210 may not be generated for presentation until the current charge level surpasses first marker indication 204, or first marker indication 204 may be emphasized or displayed more prominently than second marker indication 210 until the current charge level surpasses first marker indication 204, at which point second marker indication 210 may be displayed more prominently than first marker indication 204. In some embodiments, the charge range indicated at 206 and the first marker indication 204 may continue to be displayed even after the battery 110 has been charged to a charge level indicated at 224 that exceeds the charge level associated with the first marker indication 204 to show that the battery 110 of the electric vehicle 101 has at least the charge range indicated at 206.

[0050] At 203, processing circuitry 102 may determine, based on charging information received from battery system 108, that the current charge level indicated at 226 depicted in state of charge gauge 205 (corresponding to the current charge range indicated at 213, e.g., 321 miles) has equaled or exceeded the charge range associated with range selection and second marker indication 210, indicated at 212. Consequently, processing circuitry 102 and / or output circuitry 116 may modify the appearance of second marker indication 210 and / or indications 212, 214 of charge range 212 and estimated charge time 214, respectively (e.g., by ceasing to generate one or more of second marker indication 210 and / or indications 212, 214 for display and / or graying out second marker indication 210 and / or indications 212, 214). In some embodiments, a notification may be output (e.g., at display 130 and / or user device 138) to indicate to the driver that charge range 212 has been reached. In some embodiments, even after battery 110 has been charged beyond charge level 226 associated with marker indication 210, one or more of indication 212 of charging range, indication 214 of estimated time to reach charging range, and indication of second marker indication 210 may continue to be displayed to show that electric vehicle 101 has at least the charging range indicated at 212.

[0051] Figure 3An example graphical user interface (GUI) 300 is shown that provides information including an intermediate charge range indicated at 306 and an estimated time to reach the intermediate charge range indicated at 308, according to some embodiments of the present disclosure. GUI 300 can be provided on a display 130 of vehicle 101 and / or a display of a user device 138 and / or a display of charger 114 while vehicle 101 is operating (e.g., driving) and / or while vehicle 101 is charging at charger 114 (e.g., at a home or public charging station). GUI 300 can include a charging icon 302 that indicates whether battery 110 of vehicle 101 is currently charging; a current vehicle range indication 304; a speed indication 307 (e.g., an average speed over a period of time or a current speed) as determined by speed sensor 126; and a cost 309 to charge battery 110 to a specific charge level. GUI 300 may also include a state of charge level gauge 305 that indicates a difference between a current charge level and an intermediate charge range indicated at 306, and a charge range associated with a range selection indicated at 312, as well as an estimated charge time to reach the intermediate charge range indicated at 306 indicated at 308 and an estimated charge time to reach the charge range indicated at 312 indicated at 314. As discussed, processing circuitry 102 and / or output circuitry 120 may generate the range selection, intermediate charge range 306, and the driver history stored in memory 106 for presentation on GUI 300 based on information in one or more of the aforementioned Tables 1-4.

[0052] Figure 4An example technique for generating a graphical user interface 400 that provides information including an intermediate charging range indicated at 406 and an estimated time to reach the intermediate charging range indicated at 408, according to some embodiments of the present disclosure, is shown. GUI 400 may include an indication 402 that vehicle 101 is currently being charged by charger 114 (e.g., a 150 kW output power charger as indicated at 407), and a state of charge gauge 405 indicating the current charge level of battery 110. In some embodiments, GUI 400 may include an indication 409 of the current vehicle range (e.g., 50 miles). Processing circuitry 102 may determine an estimated charging time, indicated at 408, for the intermediate charging range provided in GUI 400, as well as an estimated charging time, indicated at 412, for the charging range associated with the range selection, indicated at 414, included in GUI 400. In some embodiments, the processing circuitry may select table 403 from a plurality of tables stored in memory 106 based on determining (e.g., based on information received from battery system 108) that the battery type of battery 110 of vehicle 101 corresponds to the battery type associated with table 403 indicated at 410 (e.g., a 135 kWh battery pack).

[0053] Processing circuitry 102 may determine a range selection (e.g., based on a user selection input of one of "Tour," "Extended," and "Everyday") and the current vehicle range indicated at 409. The range selections may be divided into a plurality of categories (e.g., three), as discussed above with reference to Tables 1-4, namely, "Tour," "Extended," and "Everyday," each category having an estimated range appropriate for the amount of travel represented by that category, and processing circuitry 102 may receive user input of a range selection by selecting one of these options. Additionally or alternatively, processing circuitry 102 may receive user input specifying a particular destination with a known range, and the range selection may be determined based on such input, and / or the range selection may be predicted based on the user's driving patterns and / or previous destinations traveled to by the user, as specified in a user profile stored in memory 106 and / or in memory of user device 138.

[0054] like Figure 4As shown in , table 403 (e.g., corresponding to Table 3 described above) can be used as a lookup table, for example, a range selection between the options shown at 404 ("Travel"; "Extended"; "Everyday") and the current vehicle range (e.g., received from the battery system 108) can be received as input 401, and based on such input, table 403 can be used to determine the intermediate charging range indicated at 406 and the charging range associated with the range selection and indicated at 414. In some embodiments, the intermediate charging range indicated at 406 (associated with the first marker indication 417) can be determined based on each of the range selection and the current vehicle range entered at 401, and the charging range associated with the second marker indication 419 can be determined based solely on the range selection. As discussed above, the indications and / or associated information indications of the charge level status gauge 405 and the charge level status gauge 405 itself can be presented in any suitable manner (e.g., in any color, font, size, or shape). As Figure 4 As shown in FIG, if the current vehicle range indicated at 409 is determined to be 50 miles (e.g., a state of charge less than 30% of the maximum charge range of battery 110), and the range selection is determined to correspond to "extended", processing circuitry 102 may use portion 411 of lookup table 403 to determine that the intermediate charge range of 50% state of charge (150 miles) indicated at 406 (e.g., tag 1 value column 413 in table 403) may be appropriate (based on the current vehicle range being less than 30% and the "extended" range selection), and processing circuitry 102 may use portion 404 of table 403 to determine the charge range associated with second tag indication 419 indicated at 414 (e.g., corresponding to tag 2 value column 415 in table 403) and the range selection. In some embodiments, in addition to or in lieu of the information in table 403, the driving history of vehicle 101 may be considered when determining the intermediate charge range indicated at 406, for example, based on a user profile of a reference driver. In some embodiments, the GUI 400 may round up to make it easier for the driver of the vehicle 101 to consume (eg, round up to the nearest increment of 5 or 25).

[0055] Figure 5An example spider chart 500 is shown suggesting multiple destinations based on a current vehicle location, according to some embodiments of the present disclosure. Spider chart 500 can be displayed via display 130 and / or a display of user device 138 and / or charger 114 and can include an indication 502 of the current vehicle range (e.g., 45 miles) that vehicle 101 can travel at the current charge condition of battery 110 and branches 504, 506, 508, 510, and 512. Each branch can be associated with a corresponding location indication 514, 520, 526, 532, 538; a charge range indication 516, 522, 528, 534, 540; and an estimated charging time indication 518, 524, 530, 536, 542 to reach the corresponding charge range to reach the corresponding location. In some embodiments, the location can be determined based on a monitored driving history of vehicle 101 (e.g., in conjunction with a driver's user profile stored in memory 106) to determine the expected navigation location, and the charge ranges can correspond to corresponding intermediate charge ranges. For example, location 514 may correspond to "home," and processing circuitry 102 may determine that this location is frequently traveled to by the driver of electric vehicle 101 and requires a charging range of 75 miles, as indicated at 516, and a charging time of 3 minutes, as indicated at 518, to achieve charging range 516. In some embodiments, processing circuitry 102 may consider certain traffic patterns (e.g., based on information received from GPS 134) when identifying which locations to suggest (e.g., omitting certain locations with higher than normal traffic) or analyze certain weather patterns (e.g., suggesting a beach destination if the weather is better than normal). In some embodiments, processing circuitry 102 may employ a buffer when identifying the required charging range (e.g., to provide a buffer of additional distance beyond the distance to the associated destination). In some embodiments, spider map 500 may be overlaid on a navigation interface (e.g., provided based on information received from GPS 134) and may allow the driver to change the current navigation destination to (or otherwise enter as a navigation destination) the destination indicated by spider map 500. In some embodiments, the lengths of branches 504, 506, 508, 510, and 512 may vary based on the calculated respective distances of the vehicle 101 from the respective locations associated with the branches. For example, branch 504 may correspond to a shorter length than branch 512 to indicate to the driver that indicated location 514 associated with branch 504 is closer to the current location of the vehicle 101 than indicated location 538 associated with branch 512.

[0056] In some embodiments, processing circuitry 102 may receive a selection from the driver (e.g., via input interface 122) regarding how many branches to include in spider map 500, and / or a maximum distance from a destination that may be included in spider map 500, and / or a selection of a predefined area for locations within spider map 500. In some embodiments, spider map 500 may be associated with selectable adventure options 514 (e.g., selectable by the driver via input interface 122) that may suggest popular adventure excursion destinations that the user may or may not frequently travel to (e.g., the "park" destination indicated at 538). In some embodiments, processing circuitry 102 may check whether a charging station is within a predetermined distance of a location before suggesting that location as part of spider map 500. In some embodiments, the locations included in spider map 500 may be determined at least in part based on the range selection.

[0057] Figure 6 A flow chart illustrating an example process for providing information including an intermediate charge range and an estimated time to reach the intermediate charge range according to some embodiments of the present disclosure is shown. Process 600 may be performed at least in part by processing circuitry 102.

[0058] At 602, processing circuitry 102 may determine the current vehicle range of electric vehicle 101, indicated at 304, by, for example, requesting information about the current charge level of battery 110 from battery system 108. Processing circuitry 102 may be configured to calculate the current vehicle range as the number of miles or kilometers that electric vehicle 101 can travel based on the charge level of battery 110.

[0059] At 604, processing circuitry 102 may determine a range selection based on the current destination or based on the driving habits of electric vehicle 101, e.g., received as input at 401 and / or otherwise determined. For example, input circuitry 116 may receive and, based on a selection received via input interface 122 (e.g., as Figure 4 , "Daily," "Extended," or "Trip" usage selections) or vehicle destinations (e.g., Figure 5 One or more of the inputs (destination shown in ) determine the range selection in the classification defined in column 404 of table 403.

[0060] At 606, processing circuitry 102 may determine the difference between the current vehicle range indicated at 409 (e.g., 50 miles) and the charge range associated with the range selection indicated at 414 (e.g., 240 miles) based on the current vehicle range indicated at 409 and the charge range associated with the range selection indicated at 414. Figure 4For example, processing circuitry 102 may use table 403 as a lookup table that takes as input 401 the current vehicle range indicated at 409 (e.g., 50 miles, which corresponds to an SOC below 30% in column 411 of table 403) and a range selection (e.g., a "daily" use selection), and outputs a flag 1 value of 150 miles associated with column 411 of table 403 (e.g., corresponding to flag indication 417 associated with the intermediate charge range indicated at 406).

[0061] At 608, processing circuitry 102 may determine an estimated charging time, indicated at 408, to charge electric vehicle 101 to the intermediate charging range, indicated at 406. For example, processing circuitry 102 may communicate with battery system 108 to determine a power level associated with charger 114 (e.g., a DC fast charger) and calculate the estimated charging time, indicated at 408, to reach the intermediate charging range, indicated at 406, based on the current vehicle range, indicated at 409, of vehicle 101.

[0062] At 610 , processing circuitry 102 may be configured to cause output circuitry 120 to generate an indication of the intermediate charge range indicated at 406 and an estimated charging time to reach the intermediate charge range indicated at 406 , indicated at 408 , for presentation at display 130 and / or user device 138 , thereby providing convenience information to the driver of electric vehicle 101 (e.g., to potentially spend less time at the current charger because display 130 and / or user device 138 and / or charger 114 can provide information to the driver to determine that the intermediate charge range indicated at 406 is sufficient for the intended navigation at the current time).

[0063] Figure 7 A flow chart illustrating an example process for providing information including an intermediate charge range and an estimated time to reach the intermediate charge range according to some embodiments of the present disclosure is shown. Process 700 may be performed at least in part by processing circuitry 102.

[0064] At 702, processing circuitry 102 may determine whether user input (eg, corresponding to one of the categories depicted in 404) of a range selection (eg, corresponding to a category) is received via input circuitry 116. Figure 4). In some embodiments, range selection is additionally or alternatively determined based on a standard charge range (e.g., 80% of the capacity of battery 110). Upon determining that such input has been received, processing may proceed to 708. Otherwise, processing circuitry 102 may proceed to 704. In some embodiments, range selection may be predicted, such as where the destination is unknown and user input has not yet been received. For example, processing circuitry may determine range selection based on the current time or day of the week (e.g., "Everyday" on weekdays and "Travel" on weekends).

[0065] At 704, processing circuitry 102 may determine whether a vehicle destination has been entered or otherwise predicted (e.g., based on vehicle 101 driving history and determining that vehicle 101 normally travels to the same location at this particular time and day of the week). If such a vehicle destination has been entered or predicted, processing may proceed to 706. Otherwise, processing may return to 702.

[0066] At 706, processing circuit 102 may determine the range selection indicated at 414 based on the vehicle destination. For example, processing circuit 102 may determine a route to the vehicle destination and calculate the route distance as the range selection. In some embodiments, a buffer is added to the route distance and / or the range selection is rounded to the nearest mileage increment (e.g., 5, 10, or 25 miles).

[0067] At 708, processing circuitry 102 may optionally determine whether electric vehicle 101 is currently charging at charger 114. For example, processing circuitry 102 may communicate with battery system 108 to check whether vehicle 101 is currently charging and / or determine location information of vehicle 101 (e.g., based on GPS 134) to determine whether vehicle 101 is located at a charging station.

[0068] At 710 , in response to determining that vehicle 101 is charging at charger 114 , processing circuitry 102 may determine the current vehicle range indicated at 304 (e.g., 198 miles) based on the state of charge of battery 110 of the electric vehicle (e.g., determined based on information received by processing circuitry 102 from battery system 108 ).

[0069] At 712, in response to determining that vehicle 101 is not being charged, processing circuitry 102 may predict what the current vehicle range will be when electric vehicle 101 arrives at a charging station with charger 114. For example, processing circuitry 102 may determine that the charging station is 10 miles from the current location of vehicle 101 (e.g., based on information from GPS 134), and that the current charging range of vehicle 101 indicated at 409 is 50 miles, so when vehicle 101 arrives at the charging station, the current charging range will be 40 miles.

[0070] At 714, processing circuit 102 determines that an intermediate charging range indicated at 306 between the current vehicle range indicated at 304 and the charging range associated with the range selection indicated at 312 can be compared to the current vehicle range indicated at 304 and the charging range associated with the range selection indicated at 312. Figure 6 714 is executed in a similar manner to 606 .

[0071] At 716 , processing circuitry 102 may cause output circuitry 120 and / or user device 138 to generate, for presentation, indication 206 associated with an intermediate charging range; first marker indication 204 corresponding to the intermediate charging range indicated at 206 on state of charge gauge 205 ; second marker indication 210 at charging range 210 associated with range selection on state of charge gauge 205 ; and estimated charging times indicated at 208 and 214 to reach the intermediate charging range indicated at 206 and the charging range indicated at 210 , respectively. In some embodiments, such presentation may occur regardless of whether vehicle 101 is currently charging. In some embodiments, if vehicle 101 is not currently charging, the estimated charging times indicated at 208 and 214 may be calculated based on the expected current vehicle range of vehicle 101 upon arrival at charger 114 (e.g., determined to be within a predefined distance from vehicle 101 such that vehicle 101 has sufficient range to navigate to a charging station with charger 114 ).

[0072] At 718, processing circuitry 102 may determine whether the current charge range (e.g., corresponding to the charge level indicated at 202) exceeds the intermediate charge range indicated at 206. For example, processing circuitry 102 may receive current charge range information from battery system 108 and compare the current charge range information to the intermediate charge range indicated at 206. Upon determining that the current charge range does not exceed the intermediate charge range indicated at 206, processing circuitry 102 may wait until this is the case. Upon determining that the current charge range (e.g., corresponding to the charge level indicated at 224) exceeds the intermediate charge range 206, processing may proceed to 720.

[0073] At 720, processing circuitry 102 may cause output circuitry 120 and / or user device 138 to modify the presentation of first indicia 204 (and / or the charge range indicated at 206 and / or the estimated charge time indicated at 208) and continue to generate for presentation second indicia 210 and / or the corresponding charge range 212 and / or the estimated charge time indicated at 214, which may be continuously updated to decrease as the charge level indicated in state of charge meter 205 increases from the indication at 202 to the indication at 204. In some embodiments, second indicia 210 may not be generated for presentation until the intermediate charge range indicated at 206 is exceeded. In some embodiments, modifying the presentation of first marker indication 204 (and / or the charge range indicated at 206 and / or the estimated charge time indicated at 208) may include processing circuitry 102 causing output circuitry 120 and / or user device 138 to cease generating first marker indication 204 (and / or the charge range indicated at 206 and / or the estimated charge time indicated at 208) for display. In some embodiments, modifying the presentation of first marker indication 204 (and / or the charge range indicated at 206 and / or the estimated charge time indicated at 208) may include causing output circuitry 120 and / or user device 138 to modify the appearance of first marker indication 204 (and / or the charge range indicated at 206 and / or the estimated charge time indicated at 208) rather than ceasing to generate first marker indication 204 and associated indications for display. For example, when it is determined that the current charge level exceeds first marker indication 204 , first marker indication 204 (and / or the charge range indicated at 206 and / or the estimated charge time indicated at 208 ) may be grayed out or otherwise de-emphasized.

[0074] At 722, processing circuitry 102 may determine whether the current vehicle range (e.g., corresponding to the charge level indicated at 226) exceeds the charge range indicated at 212 (e.g., associated with the range selection), or another predefined range (e.g., a standard range, such as 80% of battery capacity, or a fully charged battery that may be optionally specified by the driver). Upon determining that the current charge range does not exceed the charge range indicated at 212, processing circuitry may wait until this is the case. Upon determining that the current charge range (e.g., corresponding to charge level 226) exceeds the charge range indicated at 212, processing may proceed to 724.

[0075] At 724, processing circuitry 102 may cause output circuitry 120 and / or user device 138 to modify the appearance of second indicia 210 (and / or the charge range indicated at 212 and / or the estimated charge time indicated at 214) in response to determining that the current charge range (e.g., corresponding to the charge level indicated at 226) exceeds the charge range indicated at 212. In some embodiments, processing circuitry 102 may additionally stop charging vehicle 101. In some embodiments, modifying the presentation of second indicia 210 (and / or the charge range indicated at 212 and / or the estimated charge time indicated at 214) may include processing circuitry 102 causing output circuitry 120 and / or user device 138 to stop generating second indicia 210 (and / or the charge range indicated at 212 and / or the estimated charge time indicated at 214) for display. In some embodiments, modifying the presentation of second marker indication 210 (and / or the charge range indicated at 212 and / or the estimated charge time indicated at 214) may include causing output circuitry 120 and / or user device 138 to change the appearance of second marker indication 210 (and / or the charge range indicated at 212 and / or the estimated charge time indicated at 2148) rather than ceasing to generate second marker indication 210 and associated indications for display. For example, when it is determined that the current charge level exceeds second marker indication 210, second marker indication 210 (and / or the charge range indicated at 212 and / or the estimated charge time indicated at 214) may be grayed out or otherwise de-emphasized.

[0076] Figure 8 A spider graph (eg, Figure 5 500 in the spider diagram. Process 800 may be performed at least in part by processing circuit 102.

[0077] At 802, processing circuitry 102 may monitor the driving history of electric vehicle 101. For example, processing circuitry 102 may reference GPS information associated with GPS 134 and / or information stored at user device 138 to determine travel to points of interest stored in a user profile of the driver of electric vehicle 101 (e.g., stored in memory 106 and / or a memory of user device 138), or common destinations consistent with such points of interest. In some embodiments, memory 106 may store relationships between the time of day, time of year, and / or day of the week of previous travels by the electric vehicle to various destinations.

[0078] At 804, processing circuit 102 may determine the current vehicle range of electric vehicle 101 (e.g., 50 miles as indicated at 409). Figure 6804 is executed in a similar manner to 602 .

[0079] At 806, processing circuitry 102 may identify one or more prospective navigation locations based on the monitored driving history. For example, locations 514, 520, 526, 532, and / or 538 may be identified as destinations to which the driver of vehicle 101 may be interested in navigating (e.g., locations to which the electric vehicle has previously or typically traveled, or to which the driver may be interested in traveling, at times similar to the current time based on a user profile).

[0080] At 808, processing circuit 102 may determine whether more than one location has been identified. If only one location has been identified, processing may proceed to 810. If more than one location has been identified, processing may proceed to 814.

[0081] At 810, the processing circuit 102 may determine an intermediate charging range of the electric vehicle 101, indicated at 306, based on the current vehicle range indicated at 304, to at least reach the identified location. For example, to at least enable the user to reach a detour (e.g., a hotel) on the way to the final destination (e.g., a relative's home), the intermediate charging range to which the electric vehicle 101 frequently travels may be determined as the intermediate charging range 306.

[0082] At 812 , the processing circuitry 102 may generate, for presentation, an indication of the intermediate charging range indicated at 306 , an indication of the identified location (e.g., the name of the hotel associated with the detour mentioned above), and an estimated charging time indicated at 308 to reach the intermediate charging range indicated at 306 .

[0083] At 814, processing circuitry 102 may determine, based on the current vehicle range (e.g., 45 miles) indicated at 502, that the electric vehicle 101 has a corresponding intermediate charging range (e.g., 516, 522, 528, 534, 540) to at least reach the identified locations 514, 520, 516, 532, and / or 538. At 816, processing circuitry 102 may generate a spider chart 500 for presentation (e.g., at display 130 and / or user device 138), the spider chart including the corresponding intermediate charging ranges indicated at 516, 522, 528, 534, 540; the identified locations indicated at 514, 520, 516, 532, and / or 538; and the estimated charging times to reach the corresponding intermediate charging ranges indicated at 518, 524, 530, 536, 542. For example, spider map 500 may indicate that an estimated charge of 4 minutes, indicated at 524, is required to enable vehicle 101 to navigate to the workplace of the driver of vehicle 101. In some embodiments, a buffer may be used in an intermediate charging range (e.g., the workplace may be 35 miles away, but the indication of 80 miles enables electric vehicle 101 to make a round trip with the remaining miles). In some embodiments, the relative positioning of the identified locations in spider map 500 is based on the relative direction of the locations relative to vehicle 101.

[0084] The foregoing is merely an example of the principles of the present disclosure, and various modifications may be made by those skilled in the art without departing from the scope of the present disclosure. The above embodiments are presented for purposes of illustration and not limitation. The present disclosure may also take many forms other than those explicitly described herein. Therefore, it is emphasized that the present disclosure is not limited to the methods, systems, and apparatus explicitly disclosed, but is intended to include variations and modifications of the invention within the spirit of the following claims.

Claims

1. A system for estimating charging time of an electric vehicle, the system comprising: monitor; as well as a processing circuit configured to: determining a current vehicle range of the electric vehicle; determining a range selection for the electric vehicle; determining an intermediate charging range between the current vehicle range and the charging range associated with the range selection based on the current vehicle range and the charging range associated with the range selection; determining an estimated charging time for charging the electric vehicle to the intermediate charging range; as well as An indication of the intermediate charge range and an estimated charge time to reach the intermediate charge range is generated for presentation at the display. 2 . The system of claim 1 , wherein the processing circuit is configured to determine the range selection based on a vehicle destination. 3 . The system of claim 1 , wherein the processing circuit is configured to determine the range selection range by receiving a user input range selection, wherein the user input range selection corresponds to a use selection. 4 . The system of claim 1 , wherein the indication of the intermediate charging range comprises a distance the electric vehicle can be driven at the intermediate charging range. 5 . The system of claim 3 , wherein the usage selection corresponds to a daily usage selection, an extended usage selection, or a travel usage selection, each of the daily usage selection, the extended usage selection, and the travel usage selection being associated with a corresponding distance estimate.

6. The system of claim 1 , wherein: The processing circuit is configured to determine the intermediate charging range by: monitoring a driving history of the electric vehicle; and identifying a plurality of expected navigational locations for the electric vehicle based on the driving history; and determining a plurality of intermediate charging ranges, each respective intermediate charging range enabling the electric vehicle to reach a respective one of the plurality of identified expected navigation locations; and The processing circuit is configured to generate for presentation each indication of the intermediate charge range and each estimated charge time to reach the intermediate charge range by: Generates the following for rendering: a plurality of indications corresponding to the plurality of expected navigational positions, respectively; and A plurality of indications of respective intermediate charging ranges associated with the plurality of expected navigation locations. 7 . The system of claim 1 , wherein the intermediate charging range is less than 80% of a charge capacity of a battery of the electric vehicle.

8. The system of claim 1 , wherein the processing circuit is configured to determine the intermediate charging range by: referencing a lookup table stored in a memory, the lookup table indicating a plurality of intermediate charge range values and corresponding current vehicle range values and corresponding charge range values associated with respective range selections; and The intermediate charge range is determined using the lookup table and based on the determined current vehicle range and the charge range associated with the determined range selection.

9. The system of claim 1 , wherein the processing circuit is further configured to: A state of charge gauge is generated for presentation, wherein a first position of the state of charge gauge represents the current vehicle range and a first marking indication at a second position of the state of charge gauge represents the intermediate charge range.

10. The system of claim 9, wherein the processing circuit is further configured to: The following are generated for presentation at a third position of the state of charge gauge: a second marking indication representing a charging range associated with the range selection, wherein the third position is located farther along the state of charge gauge than the first position and the second position; as well as an estimated charging time to reach a charging range associated with the range selection; as well as In response to determining that the current vehicle range has reached the intermediate charging range: modifying generating a first indicia associated with the intermediate charging range for presentation; and The second indicia indication and estimated charging time to reach the range-select charging range continue to be generated for presentation.

11. A method for estimating a charging time of an electric vehicle, the method comprising: determining a current vehicle range of the electric vehicle; determining a range selection for the electric vehicle; determining an intermediate charging range between the current vehicle range and the charging range associated with the range selection based on the current vehicle range and the charging range associated with the range selection; determining an estimated charging time for charging the electric vehicle to the intermediate charging range; as well as An indication of the intermediate charge range and an estimated charge time to reach the intermediate charge range is generated for presentation. 12 . The method of claim 11 , wherein the range selection is determined based on a vehicle destination.

13. The method of claim 11 , wherein determining a range selection range comprises receiving a range selection input by a user, and wherein: The range selection input by the user corresponds to a usage selection.

14. The method of claim 11, wherein the indication of the intermediate charging range comprises a distance the electric vehicle can be driven at the intermediate charging range. 15 . The method of claim 13 , wherein the usage selection corresponds to a daily usage selection, an extended usage selection, or a travel usage selection, each of the daily usage selection, the extended usage selection, and the travel usage selection being associated with a respective distance estimate.

16. The method of claim 11, wherein: Determining the intermediate charging range includes: monitoring a driving history of the electric vehicle; and identifying a plurality of expected navigational locations for the electric vehicle based on the driving history; and determining a plurality of intermediate charging ranges, each respective intermediate charging range enabling the electric vehicle to reach a respective one of the plurality of identified expected navigation locations; and Generating for presentation an indication of each intermediate charge range and an estimated charge time to reach each intermediate charge range includes: Generates the following for rendering: a plurality of indications corresponding to the plurality of expected navigational positions, respectively; and A plurality of indications of respective intermediate charging ranges associated with the plurality of expected navigation locations.

17. The method of claim 11 , wherein determining the intermediate charging range comprises: referencing a lookup table stored in a memory, the lookup table indicating a plurality of intermediate charge range values and corresponding current vehicle range values and corresponding charge range values associated with respective range selections; as well as The intermediate charge range is determined using the lookup table and based on the determined current vehicle range and the charge range associated with the determined range selection.

18. The method according to claim 11, further comprising: A state of charge gauge is generated for presentation, wherein a first position of the state of charge gauge represents the current vehicle range and a first marking indication at a second position of the state of charge gauge represents the intermediate charge range.

19. The method according to claim 18, further comprising: The following are generated for presentation at a third position of the state of charge gauge: a second marking indication representing a charging range associated with the range selection, wherein the third position is located farther along the state of charge gauge than the first position and the second position; as well as an estimated charging time to reach a charging range associated with the range selection; as well as In response to determining that the current vehicle range has reached the intermediate charging range: modifying generating a first indicia associated with the intermediate charging range for presentation; and The second indicia indication and estimated charging time to reach the range-select charging range continue to be generated for presentation.

20. A non-transitory computer-readable medium having non-transitory computer-readable instructions encoded thereon that, when executed by a processor, cause the processor to perform the method of any one of claims 11-19.

Citation Information

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  • Method and module for estimating after-charge drivable range of electric vehicle and driving assistance device

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