Apparatus for controlling regenerative braking for battery charging based on travel information and method thereof

Abstract

The present application relates to an apparatus and method for controlling regenerative braking for battery charging based on travel information, which can include a travel information generation apparatus that generates travel information of a vehicle, a controller that controls regenerative braking of the vehicle based on the generated travel information, and a charging apparatus that controls charging of a battery of the vehicle based on the controlled regenerative braking.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2021-0064935, filed on May 20, 2021, the entire contents of which are incorporated herein by reference for all purposes. Technical Field

[0003] This invention relates to a device and method for controlling regenerative braking for battery charging based on driving information. Background Technology

[0004] Typically, battery-powered vehicles, such as electric vehicles, hybrid electric vehicles, and plug-in hybrid electric vehicles, can utilize regenerative braking to improve electricity or fuel economy. However, in specific situations, such as when the battery is fully charged, these vehicles may only adjust the brakes through friction braking, potentially increasing the load on the brakes. Therefore, a system capable of adjusting regenerative braking according to the situation is needed.

[0005] Furthermore, even when regenerative braking is adjusted, if regenerative braking is prohibited from exceeding an unnecessary amount, the battery SOC required for driving may not be achieved. Therefore, it is necessary to adjust the controlled amount of regenerative braking according to the vehicle's driving conditions.

[0006] The information disclosed in the Background section of this invention is only intended to enhance the understanding of the general background of the invention and should not be construed as confirmation of prior art known to those skilled in the art or any form of implication. Summary of the Invention

[0007] Various aspects of the present invention aim to provide a system for adjusting regenerative braking according to the conditions of a vehicle.

[0008] Furthermore, various aspects of the present invention aim to provide a system for adjusting the controlled amount of regenerative braking according to the driving state of the vehicle.

[0009] The technical problems to be solved by the present invention are not limited to those described above, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art from the following description of the various exemplary embodiments of the present invention.

[0010] According to various aspects of the present invention, an apparatus for controlling regenerative braking for battery charging based on driving information may include: a driving information generating device for generating driving information of a vehicle; a controller for controlling regenerative braking of the vehicle based on the generated driving information; and a charging device for controlling the charging of the vehicle's battery based on the controlled regenerative braking.

[0011] Furthermore, according to various exemplary embodiments of the present invention, when the longitudinal acceleration value of the vehicle is less than a predetermined first value, the driving information generation device can generate driving information. This driving information may include a slope value between a first point and a second point. The vehicle can travel from the first point to the second point, and the altitude at the second point is higher than the altitude at the first point.

[0012] Furthermore, according to various exemplary embodiments of the present invention, the slope value between the first point and the second point can be generated based on the straight-line distance between the first point and the second point in their horizontal direction and the altitude difference between the altitude at the first point and the altitude at the second point.

[0013] Furthermore, according to various exemplary embodiments of the present invention, when the slope value between the first point and the second point is greater than a predetermined second value and the altitude difference between the altitude at the first point and the current altitude of the vehicle is greater than a predetermined third value, the controller may disable regenerative braking.

[0014] Furthermore, according to various exemplary embodiments of the present invention, when regenerative braking is prohibited, the charging device can determine the necessary remaining state of charge (SOC) value of the vehicle's battery.

[0015] Furthermore, according to various exemplary embodiments of the present invention, the charging device may prohibit charging of the vehicle's battery when the depth of discharge (DOD) value indicating the current discharge amount of the battery is equal to or less than the determined necessary remaining SOC value of the battery, and may charge the vehicle's battery when the DOD value indicating the current discharge amount of the battery is greater than the determined necessary remaining SOC value of the battery.

[0016] Furthermore, according to various exemplary embodiments of the present invention, the vehicle can travel from a second point to a third point, the altitude of the third point may be lower than that of the second point, and the second and third points can be interconnected by one or more roads. The necessary remaining SOC value of the battery can be determined based on the maximum value among the predicted regenerative braking counts determined for each of the one or more roads.

[0017] Furthermore, according to various exemplary embodiments of the present invention, the predicted number of regenerative braking times for each of the one or more roads can be determined based on the number of curves present on each of the one or more roads and the slope value between the second point and the third point.

[0018] Furthermore, according to various exemplary embodiments of the present invention, the slope value between the second point and the third point can be generated based on the straight-line distance between the second point and the third point in their horizontal direction and the altitude difference between the altitude at the second point and the altitude at the third point.

[0019] Furthermore, according to various exemplary embodiments of the present invention, the driving information generation device can generate driving information based on the vehicle's audio-video navigation (AVN) system.

[0020] According to various aspects of the present invention, a method for controlling regenerative braking for battery charging based on driving information may include: generating driving information of the vehicle; controlling regenerative braking of the vehicle based on the generated driving information; and controlling battery charging of the vehicle based on the controlled regenerative braking.

[0021] Furthermore, according to various exemplary embodiments of the present invention, generating vehicle driving information may include generating driving information when the longitudinal acceleration value of the vehicle is less than a predetermined first value. This driving information may include a slope value between a first point and a second point. The vehicle can travel from the first point to the second point, and the altitude at the second point is higher than the altitude at the first point.

[0022] Furthermore, according to various exemplary embodiments of the present invention, the slope value between the first point and the second point can be generated based on the straight-line distance between the first point and the second point in their horizontal direction and the altitude difference between the altitude at the first point and the altitude at the second point.

[0023] Furthermore, according to various exemplary embodiments of the present invention, controlling the regenerative braking of the vehicle may include: prohibiting regenerative braking when the slope value between the first point and the second point is greater than a predetermined second value and the altitude difference between the altitude at the first point and the current altitude of the vehicle is greater than a predetermined third value.

[0024] Furthermore, according to various exemplary embodiments of the present invention, controlling the charging of the vehicle's battery may include: determining the necessary remaining SOC value of the vehicle's battery when regenerative braking is prohibited.

[0025] Furthermore, according to various exemplary embodiments of the present invention, controlling the charging of the vehicle's battery may further include: prohibiting the charging of the vehicle's battery when the DOD value indicating the current discharge amount of the battery is equal to or less than the determined necessary remaining SOC value of the battery; and charging the vehicle's battery when the DOD value indicating the current discharge amount of the battery is greater than the determined necessary remaining SOC value of the battery.

[0026] Furthermore, according to various exemplary embodiments of the present invention, the vehicle can travel from a second point to a third point, the altitude of the third point may be lower than that of the second point, and the second and third points can be interconnected by one or more roads. The necessary remaining SOC value of the battery can be determined based on the maximum value among the predicted regenerative braking counts determined for each of the one or more roads.

[0027] Furthermore, according to various exemplary embodiments of the present invention, the predicted number of regenerative braking times for each of the one or more roads can be determined based on the number of curves present on each of the one or more roads and the slope value between the second point and the third point.

[0028] Furthermore, according to various exemplary embodiments of the present invention, the slope value between the second point and the third point can be generated based on the straight-line distance between the second point and the third point in their horizontal direction and the altitude difference between the altitude at the second point and the altitude at the third point.

[0029] Furthermore, according to various exemplary embodiments of the present invention, generating vehicle driving information may include generating driving information based on the vehicle's AVN system.

[0030] The methods and apparatus of the present invention have other features and advantages, which will be apparent or set forth in more detail from the accompanying drawings incorporated herein and the following detailed description which together serve to explain some of the principles of the invention. Attached Figure Description

[0031] Figure 1 An apparatus for controlling regenerative braking for battery charging based on driving information according to various exemplary embodiments of the present invention is shown.

[0032] Figure 2 This is a diagram illustrating regenerative braking according to various exemplary embodiments of the present invention;

[0033] Figure 3 This is a diagram used to describe the first point, the second point, and the third point according to various exemplary embodiments of the present invention;

[0034] Figure 4 This is a flowchart illustrating an example of a process for controlling regenerative braking for battery charging based on driving information according to various exemplary embodiments of the present invention;

[0035] Figure 5 This is a flowchart illustrating an example of a process for determining the necessary remaining SOC value of a battery according to various exemplary embodiments of the present invention; and

[0036] Figure 6 This is a flowchart illustrating a method for controlling regenerative braking for battery charging based on driving information according to an exemplary embodiment of the present invention.

[0037] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present a simplified representation of the various features illustrating the basic principles of the invention. Specific design features of the invention, such as particular dimensions, orientations, positions, and shapes, as included herein, will be determined in part by the intended application and environment of use.

[0038] In the accompanying drawings, and in some figures of all the drawings, reference numerals refer to the same or equivalent parts of the invention. Detailed Implementation

[0039] Reference will be made in detail to various embodiments of the invention, examples of which are shown in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments thereof, it will be understood that this description is not intended to limit the invention to these exemplary embodiments. On the other hand, the invention is intended to cover not only the exemplary embodiments thereof, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit and scope of the invention as defined in the appended claims.

[0040] In the following, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. When adding reference numerals to components in each drawing, it should be noted that even if the same component is indicated in another drawing, the same component will have the same reference numerals. In describing exemplary embodiments of the present invention, detailed descriptions associated with well-known functions or configurations will be omitted where such descriptions might unnecessarily obscure the subject matter of the invention.

[0041] In describing elements of exemplary embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used herein. These terms are used only to distinguish one element from another, but do not limit the corresponding element, nor take into account the nature, order, or priority of the corresponding element. Furthermore, unless otherwise defined, all terms used herein, including technical and scientific terms, should be interpreted as conventions in the art to which the various exemplary embodiments of the present invention pertain. It will be understood that the terms used herein should be interpreted as having meanings consistent with their meanings in the context of the present invention and related technologies, and will not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0042] In the following text, reference will be made to Figures 1 to 6 The various embodiments of the present invention are described in detail below.

[0043] Figure 1 An apparatus for controlling regenerative braking for battery charging based on driving information according to an exemplary embodiment of the present invention is shown.

[0044] Figure 1 An example of a device 1000 (or apparatus) for controlling regenerative braking for battery charging based on driving information according to an exemplary embodiment of the present invention is shown. The device according to an exemplary embodiment of the present invention may be located inside or outside the vehicle.

[0045] Vehicles according to exemplary embodiments of the present invention may include at least one of an electric vehicle (EV), a hybrid electric vehicle (HEV), or a plug-in hybrid electric vehicle (PHEV). Vehicles according to exemplary embodiments of the present invention can generally utilize regenerative braking to improve electric or fuel economy. However, in certain situations, the vehicle may adjust the brakes solely through friction braking, thus potentially increasing the load applied to the brake components. For example, when regenerative braking is not possible due to a fully charged battery, the brakes are adjusted solely through friction braking, thus potentially increasing the load applied to the brake components. Increased load on the brake components may reduce brake durability.

[0046] The apparatus according to an exemplary embodiment of the present invention can induce battery charging and discharging based on the vehicle's driving condition, and appropriately use regenerative braking when using the vehicle's brakes. For example, the apparatus can intentionally prohibit battery charging based on regenerative braking when braking uphill, and appropriately use regenerative braking on downhill roads. Therefore, the apparatus can reduce the load applied to the brakes. Furthermore, when regenerative braking is prohibited, the apparatus according to an exemplary embodiment of the present invention can determine the necessary remaining SOC value of the battery by predicting the amount of regenerative braking based on the vehicle's subsequent driving condition.

[0047] An apparatus according to an exemplary embodiment of the present invention may include a driving information generation device 1001, a controller 1002, and / or a charging device 1003. An apparatus according to an exemplary embodiment of the present invention may further include... Figure 1 One or more components, not shown, are used to implement the above scheme.

[0048] The driving information generation apparatus according to an exemplary embodiment of the present invention can generate driving information for a vehicle. The driving information generation apparatus can generate driving information based on the vehicle's audio-visual navigation (AVN) system. The driving information according to an exemplary embodiment of the present invention can be used to understand the driving status of the vehicle. For example, apparatus 1000 can control regenerative braking by understanding the driving status of the vehicle based on the driving information.

[0049] According to an exemplary embodiment of the present invention, the controller 1002 can control the regenerative braking of the vehicle based on the generated driving information. In other words, as described above, the controller 1002 according to an exemplary embodiment of the present invention can grasp the driving state of the vehicle based on the driving information, and can control the regenerative braking of the vehicle based on the grasped driving state to prevent the battery from being fully charged.

[0050] According to an exemplary embodiment of the present invention, the charging device 1003 can control the charging of the vehicle's battery based on the controlled regenerative braking. For example, when the controller 1002 prohibits regenerative braking, the charging device 1003 can determine the necessary remaining state of charge (SOC) value of the vehicle's battery, and then charge the battery based on the necessary remaining SOC value, or not charge the battery.

[0051] The apparatus 1000 according to an exemplary embodiment of the present invention can be used Figure 1 The method described herein appropriately controls the regenerative braking of the vehicle to control battery charging. The apparatus 1000 according to an exemplary embodiment of the present invention can adjust the load applied to the brakes by using regenerative braking during future vehicle operation based on a properly controlled and charged battery, thereby effectively managing the durability of brake components.

[0052] Figure 2 This is a diagram illustrating regenerative braking according to an exemplary embodiment of the present invention.

[0053] Figure 2 This is for describing regenerative braking according to an exemplary embodiment of the present invention (see reference). Figure 1 A diagram illustrating regenerative braking (as described above). Figure 1 The vehicle (e.g., EV, HEV, or PHEV) can ensure braking force by using regenerative braking and friction braking during driving braking.

[0054] The regenerative braking according to an exemplary embodiment of the present invention can be controlled by a controller 2000. The controller 2000 corresponds to the above... Figure 1 The controller 1002 described herein. According to an embodiment, charging the battery according to regenerative braking can be performed by a charging device 2001. The charging device 2001 corresponds to... Figure 1 The charging device 1003.

[0055] According to an exemplary embodiment of the present invention, the controller can control the vehicle's brakes based on the vehicle's yaw rate, longitudinal acceleration value, pedal travel sensor signal, and / or hydraulic sensor signal.

[0056] According to an exemplary embodiment of the present invention, the yaw rate can indicate the rate at which the vehicle's rotation angle changes relative to a vertical line passing through the vehicle's center portion. According to an exemplary embodiment of the present invention, the pedal travel sensor signal can be generated in response to the vehicle driver's operation of the brake pedal. According to an exemplary embodiment of the present invention, the longitudinal acceleration value can indicate an acceleration value based on the vehicle's direction of travel. That is, a longitudinal acceleration value less than 0 can indicate that the vehicle is being braked. According to an exemplary embodiment of the present invention, the hydraulic sensor signal can be a signal indicating the hydraulic pressure transmitted to the hydraulic system of the brake based on the pressure detected by the pedal travel sensor.

[0057] According to an exemplary embodiment of the present invention, the controller 2000 can further consider regenerative braking when controlling the braking of a vehicle. The amount of regenerative braking according to an exemplary embodiment of the present invention can be determined based on the state of charge (SOC) value of the vehicle's battery. That is, the vehicle, according to the exemplary embodiment, charges the battery based on regenerative braking, so regenerative braking may not be performed when the battery is fully charged. Therefore, the controller 2000 can know the SOC value of the battery. The controller 2000 only further considers regenerative braking to control the brakes when the battery is not fully charged.

[0058] The apparatus according to an exemplary embodiment of the present invention can be referenced Figure 2 The described method controls the vehicle's brakes. Furthermore, as described above, when the vehicle is braked, in addition to physical friction braking based on the driver's pedal travel, the device can also control the brakes based on regenerative braking based on the battery's SOC value.

[0059] Figure 3 This is a diagram illustrating examples of the first, second, and third points according to an exemplary embodiment of the present invention.

[0060] Reference numeral 3000 illustrates examples of the first, second, and third points according to an exemplary embodiment of the present invention.

[0061] Referring to reference numeral 3000, a vehicle according to an exemplary embodiment of the present invention can sequentially travel through a first point 3000a, a second point 3000b, and a third point 3000c. In other words, the first point may be a point indicating the starting position of the vehicle. The second point may be a point indicating a transit point of the vehicle. The third point may be a point indicating the final position of the vehicle. The first, second, and third points can be based on the above reference... Figure 1 The AVN system described can be determined automatically or by the vehicle's driver.

[0062] According to an exemplary embodiment of the present invention, the altitude of the second point can be higher than the altitude of the first point and the altitude of the third point. That is, the second point can be the point with the highest altitude among the first and third points. Therefore, when the vehicle travels from the first point to the second point, the vehicle can be traveling on an uphill road. Furthermore, when the vehicle travels from the second point to the third point, the vehicle can be traveling on a downhill road.

[0063] As per the above reference Figure 1 The device according to an exemplary embodiment of the present invention can intentionally prevent battery charging based on regenerative braking when the vehicle brakes on an uphill road, and can appropriately use regenerative braking on a downhill road. Therefore, the device can reduce the load applied to the brakes. That is, when it is predicted based on driving information that the vehicle is currently traveling on an uphill road and will then enter a downhill road, the device can prevent regenerative braking when the vehicle brakes on the uphill road.

[0064] According to an exemplary embodiment of the present invention, the apparatus can determine whether to prohibit regenerative braking based on the slope information between a first point and a second point included in the driving information and the difference between the altitude at the first point and the current altitude of the vehicle.

[0065] Reference numeral 3001 illustrates the determination of driving information according to an exemplary embodiment of the present invention. Figure 1 An example of a method for including slope information in the driving information described in the text.

[0066] As per the above reference Figure 1 The apparatus according to an exemplary embodiment of the present invention can generate vehicle driving information, and then control regenerative braking based on the generated driving information. For example, as referred to above... Figure 1 The device can intentionally disable regenerative braking when the vehicle brakes on an uphill road, and then appropriately use regenerative braking on a downhill road. The device according to an exemplary embodiment of the invention can control regenerative braking based on gradient information included in the driving information.

[0067] The slope information according to an exemplary embodiment of the present invention may include slope information between a first point and a second point, and slope information between a second point and a third point.

[0068] Referring to reference numeral 3001, according to various exemplary embodiments of the present invention, slope information between the first and second points can be generated based on the straight-line distance (L value) between the first and second points and the difference (H value) between the altitudes of the first and second points. For example, the slope information can be determined as "tan^-1(L value / H value)". According to various exemplary embodiments of the present invention, the slope information between the second and third points can also be determined in the same manner as described above. That is, the larger the value indicated by the slope information, the greater the difference in altitude between the points.

[0069] The apparatus according to an exemplary embodiment of the present invention can be used by Figure 3 The first to third points described, along with the slope information, are used to control the vehicle's regenerative braking based on the vehicle's driving information. In other words, it can be achieved through... Figure 3 The parameters described in the text are used to understand the vehicle's driving status.

[0070] Figure 4 This is a flowchart illustrating an example of a process for controlling regenerative braking for battery charging based on driving information according to an exemplary embodiment of the present invention.

[0071] Figure 4 An example of a method (or process) for controlling regenerative braking for battery charging based on driving information according to an exemplary embodiment of the present invention is shown. Figure 1 , Figure 2 and Figure 3 The apparatus described herein can perform the reference Figure 4 The method described.

[0072] Driving information generation apparatus according to an exemplary embodiment of the present invention ( Figure 1 The driving information generation device 1001 can generate driving information (S4000) in response to the vehicle's longitudinal acceleration value being less than a predetermined first value. As above Figure 2 The longitudinal acceleration value being less than 0 indicates that the vehicle is being braked. That is, the predetermined first value can be 0. In other words, the driving information generation apparatus according to an exemplary embodiment of the present invention can generate driving information in response to the vehicle being braked.

[0073] The detailed description of the driving information is the same as above. Figure 1 , Figure 2 and Figure 3 The information described herein is the same as or similar to that described above. That is, the driving information may include slope information between the first point and the second point. According to an exemplary embodiment of the present invention, the vehicle travels from the first point to the second point, and the altitude at the second point may be higher than the altitude at the first point.

[0074] Controller according to an exemplary embodiment of the present invention ( Figure 1 The controller 1002 may disable regenerative braking (S4001) in response to a slope information between the first point and the second point being greater than a predetermined second value and a difference between the altitude at the first point and the current altitude of the vehicle being greater than a predetermined third value. According to various exemplary embodiments of the present invention, the predetermined second and third values ​​may be determined by the system or by the driver of the vehicle.

[0075] In other words, the apparatus according to an exemplary embodiment of the present invention can determine whether to prohibit regenerative braking by considering the gradient information of the current driving road and the current altitude of the vehicle. That is, when the gradient of the current driving road is greater than or equal to a certain value and the current altitude of the vehicle is greater than or equal to a certain height compared with the altitude at the starting point, the apparatus can prohibit regenerative braking.

[0076] Charging device according to an exemplary embodiment of the present invention ( Figure 1 The charging device 1003 can determine the necessary remaining SOC value of the vehicle's battery in response to the prohibition of regenerative braking (S4002). A detailed description of the necessary remaining SOC value is provided above. Figure 1 The description is the same or similar. That is, the apparatus according to the exemplary embodiment can predetermine the SOC value of a battery to be charged later by regenerative braking. For example, the apparatus can predetermine the SOC value of a battery to be charged later by regenerative braking on a downhill road, and then immediately prohibit regenerative braking based on the determined SOC value.

[0077] According to an exemplary embodiment of the present invention, a charging device can charge the vehicle's battery (S4003) in response to a depth of discharge (DOD) value indicating the current discharge level of the battery being greater than a determined necessary remaining state of charge (SOC) value of the battery. A detailed description of the DOD value is as described above. Figure 1 The description is the same or similar. That is, when the current SOC value of the battery is less than the necessary remaining SOC value, the battery can be recharged through regenerative braking even if regenerative braking is prohibited.

[0078] According to an exemplary embodiment of the present invention, the charging device can prohibit charging of the vehicle's battery in response to a DOD value indicating the current discharge level of the battery being equal to or less than a determined necessary remaining SOC value of the battery (S4004). In other words, when the current SOC value of the battery is greater than the necessary remaining SOC value, the charging device can prohibit battery charging based on the prohibition of regenerative braking. That is, the charging device according to an exemplary embodiment of the present invention can determine the SOC value of the battery and can uniformly maintain the necessary remaining SOC value.

[0079] The apparatus according to an exemplary embodiment of the present invention can be used Figure 1 The method described herein appropriately controls the regenerative braking of the vehicle to control battery charging. An apparatus according to an exemplary embodiment of the invention can adjust the load applied to the brakes by using regenerative braking during future vehicle operation based on a properly controlled and charged battery, thereby effectively managing the durability of brake components.

[0080] Figure 5 This is a flowchart illustrating an example of a process for determining the necessary remaining SOC value of a battery according to an exemplary embodiment of the present invention.

[0081] Figure 5 An example of a process for determining the necessary remaining SOC value of a battery according to an exemplary embodiment of the present invention is shown. A detailed description of the necessary remaining SOC value according to an exemplary embodiment of the present invention is provided above with reference to... Figure 1 and Figure 4 The descriptions are the same or similar.

[0082] Figure 5 Step S5000, which prohibits regenerative braking, corresponds to... Figure 4 Step S4001, which prohibits regenerative braking. Figure 5 Step S5001, which determines the necessary remaining SOC value of the battery, corresponds to... Figure 4 Step S4002 in determining the necessary remaining SOC value of the battery.

[0083] According to various exemplary embodiments of the present invention, determining the necessary remaining SOC value of the battery may include: searching one or more roads (S5002); determining a predicted number of regenerative braking times for each of the one or more roads (S5003); and / or determining the necessary remaining SOC value of the battery based on the maximum value among the predicted values ​​(S5004).

[0084] As above Figure 3 According to an exemplary embodiment of the present invention, the vehicle can sequentially travel through a first point, a second point, and a third point. Furthermore, the altitude at the second point can be higher than the altitudes at the first and third points. That is, when the vehicle travels from the second point to the third point, the vehicle can travel on a downhill road. The apparatus according to an exemplary embodiment of the present invention can determine the necessary remaining SOC value of the battery when the vehicle is traveling on an uphill road based on the characteristics of the downhill road the vehicle will travel on.

[0085] According to various exemplary embodiments of the present invention, the second point and the third point can be interconnected by one or more roads. The necessary remaining SOC value according to exemplary embodiments of the present invention can be determined based on the characteristics of the aforementioned one or more roads.

[0086] First, the apparatus according to an exemplary embodiment of the present invention can search for one or more roads connecting the second point and the third point (S5002). The apparatus according to an exemplary embodiment of the present invention can search for roads based on an AVN system.

[0087] The apparatus according to an exemplary embodiment of the present invention can determine a predicted number of regenerative braking events for each road (S5003). According to various exemplary embodiments of the present invention, the predicted number of regenerative braking events for each road indicates a predicted number of times regenerative braking will be performed when the vehicle travels on each road. The predicted number of regenerative braking events for each road according to an exemplary embodiment of the present invention can be determined based on the number of curves present on each road and the slope information between the second and third points. The description of the slope information between the second and third points is the same as above. Figure 3 The descriptions are the same or similar.

[0088] The apparatus according to an exemplary embodiment of the present invention can determine the necessary remaining SOC value of the battery based on the maximum value among the predicted values ​​of the number of regenerative braking events determined for each road (S5004). In other words, the apparatus can determine the necessary remaining SOC value of the battery based on the situation that the vehicle will most frequently perform regenerative braking when driving on a downhill road.

[0089] pass Figure 1 The method described herein, and the apparatus according to an exemplary embodiment of the present invention, can control battery charging by appropriately controlling the regenerative braking of the vehicle. The apparatus according to an exemplary embodiment of the present invention can effectively manage the durability of brake components by adjusting the load applied to the brakes through regenerative braking during future vehicle operation based on a properly controlled and charged battery.

[0090] Figure 6 This is a flowchart illustrating a method for controlling regenerative braking for battery charging based on driving information according to an exemplary embodiment of the present invention.

[0091] Figure 4 An example flowchart illustrating a method (or steps) for controlling regenerative braking for battery charging based on driving information, according to an exemplary embodiment of the present invention, is shown. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The apparatus described herein can perform the reference Figure 6 The method described.

[0092] The method according to an exemplary embodiment of the present invention may include: generating vehicle driving information (S6000); controlling regenerative braking of the vehicle based on the generated driving information (S6001); and / or controlling the charging of the vehicle's battery based on the controlled regenerative braking (S6002). The method according to an exemplary embodiment of the present invention may further include... Figure 5 One or more steps not shown in the diagram.

[0093] Step S6000 according to an exemplary embodiment of the present invention may include generating driving information in response to a longitudinal acceleration value of the vehicle being less than a predetermined first value. The detailed description of the above steps is consistent with the above reference. Figure 4 The descriptions are the same or similar. Driving information according to an exemplary embodiment of the present invention may include slope information between a first point and a second point. A vehicle according to an exemplary embodiment of the present invention travels from a first point to a second point, and the altitude at the second point may be higher than the altitude at the first point. The descriptions of the first point, the second point, and the slope information are the same as those described above. Figure 2 The descriptions are the same or similar.

[0094] According to an exemplary embodiment of the present invention, the slope information between the first point and the second point can be generated based on the straight-line distance between the first point and the second point in their horizontal direction and the altitude difference between the altitude at the first point and the altitude at the second point.

[0095] Step S6001 according to an exemplary embodiment of the present invention may include disabling regenerative braking in response to a slope information between the first point and the second point being greater than a predetermined second value and an altitude difference between the altitude at the first point and the current altitude of the vehicle being greater than a predetermined third value. The detailed description of the above steps is consistent with the above reference. Figure 4 The descriptions are the same or similar.

[0096] Step S6002 according to an exemplary embodiment may include determining the necessary remaining SOC value of the vehicle's battery in response to regenerative braking being prohibited. The detailed description of the above steps is consistent with the above reference. Figure 4 and Figure 5 The descriptions are the same or similar.

[0097] Step S6002 according to an exemplary embodiment of the present invention may further include prohibiting charging of the vehicle battery in response to the DOD value indicating the current discharge amount of the battery being equal to or less than the determined necessary remaining SOC value of the battery, and charging the vehicle battery in response to the DOD value indicating the current discharge amount of the battery being greater than the determined necessary remaining SOC value of the battery. The detailed description of the above steps is consistent with the above reference. Figure 4 The descriptions are the same or similar.

[0098] According to an exemplary embodiment of the present invention, a vehicle can travel from a second point to a third point. The altitude of the third point may be lower than that of the second point. The second and third points can be connected to each other by one or more roads. The descriptions of the second and third points, as well as the one or more roads, are the same as or similar to those described above.

[0099] The necessary remaining SOC value of a battery according to an exemplary embodiment of the present invention can be determined based on the maximum value among the predicted regenerative braking counts determined for each of one or more roads. A detailed description of the necessary remaining SOC value is as described above. Figure 4 and Figure 5 The descriptions are the same or similar.

[0100] According to exemplary embodiments of the present invention, the predicted number of regenerative braking events for each road can be determined based on the number of curves on each road and the slope information between the second and third points. A detailed description and reference to the predicted number of regenerative braking events for each road are provided below, according to various exemplary embodiments of the present invention. Figure 5 The descriptions are the same or similar.

[0101] According to an exemplary embodiment of the present invention, the slope information between the second point and the third point can be generated based on the straight-line distance between the second point and the third point in their horizontal direction and the altitude difference between the altitude at the second point and the altitude at the third point.

[0102] Step S6000 according to an exemplary embodiment of the present invention may include generating driving information based on a vehicle-based AVN system. A detailed description of the AVN system is as described above. Figure 1 The same or similar as described in the text.

[0103] While the invention has been described above with reference to exemplary embodiments and accompanying drawings, it is not limited thereto. Various modifications and alterations can be made by those skilled in the art to which the various exemplary embodiments pertain without departing from the spirit and scope of the invention as claimed in the appended claims.

[0104] Therefore, the embodiments of the present invention are not intended to limit the technical concept of the invention, but are provided for illustrative purposes only. The scope of protection of the present invention should be interpreted by the appended claims, and all equivalents of the appended claims should be interpreted as being included within the scope of the present invention.

[0105] According to various exemplary embodiments of the present invention, regenerative braking can be adjusted according to the vehicle's condition.

[0106] Furthermore, according to various exemplary embodiments of the present invention, the amount of regenerative braking controlled according to the vehicle's driving state can be adjusted.

[0107] In addition, various effects can be provided, either directly or indirectly, through this instruction manual.

[0108] Furthermore, terms related to control devices, such as "controller," "control unit," "control device," or "control module," refer to hardware devices including a memory and a processor configured to execute one or more steps interpreted as an algorithmic structure. The memory stores algorithmic steps, and the processor runs the algorithmic steps to perform one or more processes of methods according to various exemplary embodiments of the present invention. A control device according to exemplary embodiments of the present invention can be implemented using a non-volatile memory and a processor configured to store algorithms for controlling the operation of various components of a vehicle or data regarding software commands for running the algorithms, the processor being configured to use the data stored in the memory to perform the aforementioned operations. The memory and processor can be separate chips. Alternatively, the memory and processor can be integrated into a single chip. The processor can be implemented as one or more processors. The processor can include various logic circuits and arithmetic circuits, can process data according to a program provided from the memory, and can generate control signals based on the processing results.

[0109] The control device may be at least one microprocessor operated by a predetermined program, which may include a series of commands for performing the methods included in the various exemplary embodiments of the present invention described above.

[0110] The invention described above can also be implemented as computer-readable code on a computer-readable recording medium. A computer-readable recording medium is any data storage device capable of storing data that can subsequently be read by a computer system. Examples of computer-readable recording media include hard disk drives (HDDs), solid-state drives (SSDs), silicon disk drives (SDDs), read-only memory (ROM), random access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and embodiments as carrier waves (e.g., transmission over the Internet).

[0111] In various exemplary embodiments of the present invention, each of the above operations may be performed by a control device, and the control device may be configured by multiple control devices or an integrated single control device.

[0112] In various exemplary embodiments of the present invention, the control device may be implemented in hardware or software form, or in a combination of hardware and software.

[0113] For ease of illustration and precise definition in the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “up,” “lower,” “upward,” “downward,” “front,” “rear,” “behind,” “inner side,” “outer side,” “inland,” “outer,” “inner,” “outer,” “forward,” and “backward” are used to describe these features of the exemplary embodiments with reference to the positions of the features shown in the accompanying drawings. It will be further understood that the term “connection” or its derivatives refer to both direct and indirect connections.

[0114] The foregoing description, which has provided specific exemplary embodiments of the invention, is for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and it will be apparent that many modifications and variations may be made based on the foregoing inspiration. Exemplary embodiments have been chosen and described to explain certain principles of the invention and its practical application, thereby enabling those skilled in the art to make and utilize various exemplary embodiments of the invention, as well as various alternatives and modifications thereof. The scope of the invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A device for controlling regenerative braking for battery charging based on driving information, the device comprising: A driving information generation device generates the driving information of the vehicle; The controller controls the regenerative braking of the vehicle based on the generated driving information received from the driving information generation device; as well as The charging device controls the charging of the vehicle's battery based on the controlled regenerative braking. The driving information includes the slope value between a first point and a second point on the road the vehicle is traveling on. The vehicle travels from the first point to the second point, and the altitude of the second point is higher than the altitude of the first point. The controller is configured to disable regenerative braking when the slope between the first point and the second point is greater than a predetermined second value and the altitude difference between the altitude at the first point and the current altitude of the vehicle is greater than a predetermined third value.

2. The apparatus according to claim 1, wherein, The driving information generation device is configured to: The driving information is generated when the longitudinal acceleration value of the vehicle is less than a predetermined first value.

3. The apparatus according to claim 2, wherein, The slope value between the first point and the second point is generated based on the straight-line distance between the first point and the second point in their horizontal direction and the altitude difference between the altitude at the first point and the altitude at the second point.

4. The apparatus according to claim 1, wherein, The charging device is configured to determine the necessary remaining state of charge (SOC) value of the vehicle's battery when the regenerative braking is disabled.

5. The apparatus according to claim 4, wherein, The charging device is configured to prohibit charging the vehicle's battery when the depth of discharge (DOD) value, which indicates the current discharge amount of the battery, is equal to or less than the determined necessary remaining state of charge (SOC) value of the battery, and to charge the vehicle's battery when the DOD value, which indicates the current discharge amount of the battery, is greater than the determined necessary remaining SOC value of the battery.

6. The apparatus according to claim 4, wherein, The vehicle travels from a second point on the road to a third point, where the altitude of the third point is lower than that of the second point, and the second and third points are interconnected by one or more roads including the road. The required remaining SOC value of the battery is determined based on the maximum value among the predicted regenerative braking counts for each of the one or more roads.

7. The apparatus according to claim 6, wherein, The predicted number of regenerative braking times for each of the one or more roads is determined based on the number of curves on each of the one or more roads and the slope value between the second point and the third point.

8. The apparatus according to claim 7, wherein, The slope value between the second point and the third point is generated based on the straight-line distance between the second point and the third point in their horizontal direction and the altitude difference between the altitude at the second point and the altitude at the third point.

9. The apparatus according to claim 1, wherein, The driving information generation device is configured to generate the driving information based on the vehicle's audio-visual navigation system, i.e., the AVN system.

10. A method for controlling regenerative braking for battery charging based on driving information, the method comprising: The driving information of the vehicle is generated by the driving information generation device; The regenerative braking of the vehicle is controlled by the controller based on the generated driving information; as well as The charging device controls the charging of the vehicle's battery based on the controlled regenerative braking. The driving information includes the slope value between a first point and a second point on the road the vehicle is traveling on. The vehicle travels from the first point to the second point, and the altitude of the second point is higher than the altitude of the first point. Controlling the regenerative braking of the vehicle includes: Regenerative braking is prohibited when the slope between the first point and the second point is greater than a predetermined second value and the altitude difference between the altitude at the first point and the current altitude of the vehicle is greater than a predetermined third value.

11. The method according to claim 10, wherein, The generation of the vehicle's driving information includes: The driving information is generated when the longitudinal acceleration value of the vehicle is less than a predetermined first value.

12. The method according to claim 11, wherein, The slope value between the first point and the second point is generated based on the straight-line distance between the first point and the second point in their horizontal direction and the altitude difference between the altitude at the first point and the altitude at the second point.

13. The method according to claim 10, wherein, Controlling the charging of the vehicle's battery includes: When regenerative braking is disabled, the necessary remaining SOC value of the vehicle's battery is determined.

14. The method according to claim 13, wherein, Controlling the charging of the vehicle's battery further includes: When the depth of discharge (DOD) value, indicating the current discharge level of the battery, is equal to or less than the determined required remaining state of charge (SOC) value of the battery, charging of the vehicle's battery is prohibited; and The vehicle's battery is charged when the DOD value, which indicates the current discharge level of the battery, is greater than the determined necessary remaining SOC value of the battery.

15. The method of claim 13, wherein, The vehicle travels from a second point on the road to a third point, where the altitude of the third point is lower than that of the second point, and the second and third points are interconnected by one or more roads including the road. The required remaining SOC value of the battery is determined based on the maximum value among the predicted regenerative braking counts for each of the one or more roads.

16. The method according to claim 15, wherein, The predicted number of regenerative braking times for each of the one or more roads is determined based on the number of curves on each of the one or more roads and the slope value between the second point and the third point.

17. The method according to claim 16, wherein, The slope value between the second point and the third point is generated based on the straight-line distance between the second point and the third point in their horizontal direction and the altitude difference between the altitude at the second point and the altitude at the third point.

18. The method according to claim 10, wherein, The generation of the vehicle's driving information includes: The driving information is generated based on the vehicle's audio-visual navigation system, i.e., the AVN system.

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