KR20230088958A - System and method for controlling regenerative braking of vehicle - Google Patents

Abstract

The present invention relates to an apparatus and method for controlling regenerative braking of a vehicle, and provides an apparatus and method for controlling regenerative braking of a vehicle, which can improve discomfort or a sense of difference felt by passengers during regenerative braking by performing regenerative braking control considering the conditions of passengers in the vehicle. Its main purpose is to provide. In order to achieve the above purpose,
An apparatus for controlling regenerative braking of a vehicle and a method for controlling the same are disclosed.

Description

Apparatus and method for controlling regenerative braking of vehicle {System and method for controlling regenerative braking of vehicle}

The present invention relates to an apparatus and method for controlling regenerative braking of a vehicle, and more particularly, by performing regenerative braking control in consideration of the state of passengers in the vehicle, thereby improving the discomfort or sense of difference felt by passengers during regenerative braking. It relates to an apparatus and method.

Recently, as interest in energy efficiency and environmental pollution issues has increased, the development and commercialization of eco-friendly vehicles that can substantially replace internal combustion engine vehicles have been actively conducted.

Eco-friendly vehicles can be largely divided into electric vehicles (FCEV, BEV) driven by using a fuel cell or battery as a power source (power source), and hybrid vehicles (HEV, PHEV) driven by using an engine and motor as a driving source for driving the vehicle. can

These eco-friendly vehicles can be referred to as electric vehicles (xEVs) in a broad sense, and they all have a common feature of driving a motor driven vehicle and an electrified vehicle by driving a motor with electric power charged in a battery.

In addition to driving for driving, the motor, which is a driving device in an electric vehicle (xEV), is controlled to perform regenerative braking that converts and recovers the vehicle's kinetic energy into electrical energy under driving conditions such as constant speed or deceleration, or coasting on a downhill road. .

That is, when the accelerator pedal is off or the brake pedal is on during vehicle driving, regenerative braking is performed by the motor. As a result, the battery is charged by the electric energy produced during regenerative braking, and thus fuel efficiency can be improved.

In a vehicle driven by a motor, a regenerative braking function is essential to increase vehicle efficiency and fuel efficiency, and as regenerative efficiency is improved during regenerative braking, a larger amount of energy can be recovered.

In the above description, accelerator pedal off or brake pedal off means a state in which the driver has released his or her foot from the corresponding pedal (press release state), and accelerator pedal on or brake pedal on This means that the driver has stepped on the corresponding pedal (pressurized state). The on/off state of the pedal can be detected by a sensor or a switch. For example, when a brake switch is turned on, it can be determined that the brake pedal is on.

On the other hand, if the regenerative braking torque is not properly controlled during regenerative braking, a driver or passenger may feel discomfort or a sense of difference. For example, if too rapid deceleration is performed due to regenerative braking even when the accelerator pedal is released, the driver may feel a sense of heterogeneity and the passenger may feel groggy or dizzy.

In particular, as the pedal is turned on and off repeatedly while driving, the passenger may feel a lot of tingling or dizziness. Therefore, a control method capable of improving this is required. In particular, regenerative braking control considering the passenger condition is required.

The present invention has been created to solve the above problems, and a regenerative braking control device for a vehicle that can improve the discomfort or sense of difference felt by passengers during regenerative braking by performing regenerative braking control in consideration of the condition of a passenger in the vehicle. And to provide a method for that purpose.

The object of the present invention is not limited to the object mentioned above, and other objects not mentioned are clearly understood from the description below to those of ordinary skill in the art to which the present invention belongs (hereinafter referred to as 'ordinary technician'). It could be.

In order to achieve the above object, according to an aspect of the present invention, a driving information detection unit for detecting vehicle driving information while the vehicle is driving; a passenger information input unit for inputting information on a passenger's condition in the vehicle; and determining a current passenger condition in the vehicle from information input from the passenger information input unit, and in real time during regenerative braking based on the vehicle driving information detected and input by the driving information detection unit and the determined passenger condition information in the vehicle. An apparatus for controlling regenerative braking of a vehicle including a controller that determines a regenerative braking torque value and controls regenerative braking of a motor according to the determined regenerative braking torque value.

And, according to another aspect of the present invention, vehicle driving vehicle driving information is detected and input to the controller; inputting information about a passenger's condition in the vehicle to the controller by a passenger information input unit; determining, by the controller, a current passenger condition in the vehicle from information input from the passenger information input unit; determining, by the controller, a regenerative braking torque value in real time during regenerative braking based on the vehicle driving information input by the driving information detector and the determined passenger condition information in the vehicle; and controlling, by the controller, regenerative braking of the motor according to the determined regenerative braking torque value.

Thus, according to the apparatus and method for controlling regenerative braking of a vehicle according to the present invention, by performing regenerative braking control in consideration of the condition of a passenger in a vehicle, it is possible to improve a feeling of discomfort or a sense of difference experienced by passengers during regenerative braking.

1 is a block diagram showing the configuration of a regenerative braking control device according to an embodiment of the present invention.
2 is a diagram illustrating an example of information displayed through a cluster as a display unit in an embodiment of the present invention.
3 is a diagram illustrating passenger condition information that can be selected through a smartphone app in an embodiment of the present invention.
4 is a diagram illustrating a control state of regenerative braking torque according to a regenerative braking level in an embodiment of the present invention.
5 is a diagram illustrating another example of a torque profile set according to a regenerative braking level in the present invention.
6 is a flowchart illustrating a regenerative braking control process according to an embodiment of the present invention.

Specific structural or functional descriptions presented in the embodiments of the present invention are merely exemplified for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described in this specification, but should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Meanwhile, in the present invention, terms such as first and/or second may be used to describe various components, but the components are not limited to the above terms. The above terms are used only for the purpose of distinguishing one component from other components, for example, within a range not departing from the scope of rights according to the concept of the present invention, a first component may be referred to as a second component, Similarly, the second component may also be referred to as the first component.

It should be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. something to do. On the other hand, when an element is referred to as “directly connected” or “directly in contact with” another element, it should be understood that no other element exists in the middle. Other expressions used to describe the relationship between components, such as "between" and "directly between" or "adjacent to" and "directly adjacent to" should be interpreted similarly.

Like reference numbers indicate like elements throughout the specification. Terms used in this specification are for describing embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, “comprises” and/or “comprising” means the presence of one or more other components, steps, operations, and/or elements in which a stated component, step, operation, and/or element is present. or do not rule out additions.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An object of the present invention is to provide an apparatus and method for controlling regenerative braking of a vehicle, which can improve discomfort or a sense of heterogeneity experienced by passengers during regenerative braking by controlling regenerative braking torque in consideration of the state of passengers in the vehicle.

In order to achieve the above object, a driver may directly check conditions such as an activity of a passenger in a vehicle, and then adjust or change the setting of regenerative braking. For example, the driver may manipulate a paddle shift to adjust the strength or degree of regenerative braking.

However, a passenger's active state or physical state may continuously change while the vehicle is driving, and it is difficult for the driver to continuously check the passenger's state while driving. If the driver has to check the condition of the passenger and adjust or change the setting of regenerative braking by manipulating the control device in the vehicle whenever the passenger's condition changes, there will be a lot of inconvenience and a problem that significantly hinders the driver's safe driving. do.

Therefore, it is necessary to automatically adjust regenerative braking according to the passenger condition in the vehicle, and the regenerative braking control device automatically adjusts the strength or degree of regenerative braking after determining the passenger condition in real time based on the information collected in the vehicle. and methods are disclosed.

1 is a block diagram showing the configuration of a regenerative braking control device according to an embodiment of the present invention.

As shown, the regenerative braking control device according to an embodiment of the present invention includes a driving information detection unit 10 that detects vehicle driving information while driving, a passenger information input unit 20 that inputs information about a passenger's condition in the vehicle, and a first controller 41 that determines a passenger condition in the vehicle based on real-time information input from the passenger information input unit 20 .

Here, the first controller 41 determines the regenerative braking level according to the determined current passenger condition, and then determines the regenerative braking level different from the determined regenerative braking level from the vehicle driving information detected by the driving information detection unit 10. Determine the torque value in real time. Also, the first controller 41 generates and outputs a regenerative braking torque command corresponding to the determined regenerative braking torque value in real time.

The first controller 41 may be a vehicle control unit (VCU) that generates a regenerative braking torque command based on vehicle driving information in a typical electric vehicle.

The vehicle driving information is information necessary for generating a motor torque command in the vehicle, and may include accelerator pedal input information and brake pedal input information, which are pedal input information of the driver. The vehicle driving information is detected by the driving information detection unit 10 and transmitted to the first controller 41 through the vehicle network.

At this time, the driving information detection unit 10 includes an accelerator pedal detection unit 11 that detects accelerator pedal input information (driver's accelerator pedal input value, APS value) according to the driver's operation of the accelerator pedal, and a brake pedal according to the driver's operation of the brake pedal. It may include a brake pedal detection unit 12 that detects input information (driver's brake pedal input value, BPS value).

Here, the accelerator pedal detection unit 11 may be a normal accelerator pedal sensor (APS) installed on the accelerator pedal and outputting an electrical signal according to the driver's accelerator pedal manipulation state.

In addition, the brake pedal detector 12 may be a conventional brake pedal position sensor (BPS) that is installed on the brake pedal and outputs an electrical signal according to the driver's brake pedal operation state.

In addition, although not shown in the drawings, the driving information detector 10 may further include a normal sensor for acquiring information necessary for determining a motor torque command in the vehicle, for example, a vehicle speed sensor.

The passenger information input unit 20 is a device for inputting information on a passenger's condition in the vehicle, and is a passenger's portable terminal 22 that can be communicatively connected to a sensor 21 mounted on the vehicle or a controller 40 of the vehicle. can be

Specifically, the sensor 21 is for detecting information for determining a passenger's condition such as sleeping, eating, or reading, and is a sensor capable of detecting a passenger's activity or movement in a vehicle, such as an infrared sensor or an ultrasonic wave. A sensor, an image sensor such as a camera, and the like may be included.

In addition, the passenger information input unit 20 is a portable terminal 22 of a passenger and may be an IT device that can be communicatively connected to a vehicle through Bluetooth communication, such as a mobile phone, a smart phone, or a tablet PC. In the present invention, information (passenger status information) input by a passenger through his/her IT device is transmitted and input to the first controller 41 .

In this way, in the present invention, the passenger can input his or her status information using his/her portable terminal 22 (eg, mobile phone or tablet PC) inside the vehicle. For example, a passenger may input information such as a current activity state such as reading, eating, or sleeping, or a current physical state such as dizziness through a smartphone.

If information such as the passenger's activity state or physical condition is not input through the portable terminal 22, the first controller 41 recognizes the passenger's activity state from the information detected by the sensor 21. will do

In addition, the regenerative braking control device according to the embodiment of the present invention further includes a second controller 42 that controls the regenerative braking operation of the motor 52 according to the regenerative braking torque command output from the first controller 41. .

The second controller 42 may be a motor control unit (MCU) that drives the motor 52 through the inverter 51 and controls driving of the motor 52 in a typical electric vehicle.

In addition, the regenerative braking control device according to an embodiment of the present invention includes a separate input unit 30 provided in the vehicle so that the user can input necessary information, real-time activity status or physical condition of passengers in the vehicle, number of passengers, etc. The display unit 60 may further include displaying passenger condition information and information about the operating state of regenerative braking considering the passenger condition.

The input unit 30 may be a button or switch provided in a vehicle, or an audio, video and navigation (AVN) input unit (including a touch screen). Also, the display unit 60 may be a display unit (including a touch screen) of a cluster or AVN.

In addition, although the subject of regenerative braking control according to the present invention has been described above by dividing into the first controller 41 and the second controller 42, the control process of regenerative braking considering the passenger condition according to the present invention is performed instead of a plurality of controllers. It can also be performed by an integrated control element.

A control element integrated with a plurality of controllers may be collectively referred to as a controller, and the control process of regenerative braking in consideration of the passenger condition according to the present invention may be performed by the controller. In the following description, the first controller 41 and the second controller 42 will be collectively referred to as the controller 40 .

Meanwhile, in an embodiment of the present invention, the regenerative braking setting value adjusted according to the passenger condition in real time may be the regenerative braking torque change rate (Nm/sec). The controller 40 adjusts the rate of change of regenerative braking torque during regenerative braking based on real-time passenger condition information, and determines the value of regenerative braking torque in real time according to the adjusted rate of change of regenerative braking torque.

In the present invention, the passenger condition information may be information on the passenger's active state in the vehicle, information on the physical condition of the passenger, or may include both information on the active state and information on the physical condition.

In an embodiment of the present invention, the activity state of the passenger may include at least one of states such as 'cell phone use', 'reading', 'game', 'sleep', 'eating', 'coffee', and 'make-up'. can Other things that passengers can do in the vehicle can be added.

Among the activity state information of the passenger, 'cell phone use' refers to the use of a personal portable terminal 22 such as a tablet PC or other IT devices as well as a mobile phone or smart phone, and 'game' may mean the use of a game machine. . In addition, 'coffee' indicates that the passenger is drinking coffee or beverage inside the vehicle, and 'make-up' indicates that the passenger is putting on makeup inside the vehicle.

In addition, the physical condition information of the passenger may include 'dizziness' felt by the passenger in the vehicle, and may further include information about the physical condition such as other discomfort that may be felt due to a change in regenerative braking torque. can

And, in the embodiment of the present invention, the controller 40 determines the current passenger condition in the vehicle based on the information input from the passenger information input unit 20 and controls the operation of the display unit 60 to display the result of the determination. can do.

At this time, the controller 40 may display the number of passengers in the vehicle and the status information of the passengers through the display unit 60, and separately, the driver controls regenerative braking in consideration of the passengers' conditions through the input unit 30. You can input by selecting on/off of . In addition, the passenger in the vehicle can input his or her activity state or physical state through the input unit 30 as in the portable terminal 22 .

2 is a diagram showing an example of information displayed through a cluster, which is a display unit, in an embodiment of the present invention, which will be described as follows.

The controller 40 may display 'Comfortable' on the cluster of the display unit 60 to indicate that the regenerative braking control considering the passenger condition proposed in the present invention is currently in operation, that is, in the on state.

In addition, as shown in the lower right corner, the number of currently boarded passengers may be displayed as an image, and information such as the current passenger activity state and physical condition may be displayed as an image. In the lower left corner, 'Passenger Lv1' indicates a regenerative braking level considering the passenger's condition, and 'Lv1' indicates a first level among regenerative braking levels described later.

It has been described above that the passenger can input his/her activity state or physical condition information using a portable terminal 22 such as his or her smartphone. The input information is transferred to the controller 40 and can be used to adjust the regenerative braking setting value.

3 illustrates passenger status information that can be selected through an application of a smartphone in an embodiment of the present invention, and a passenger selects and inputs his/her current status among those displayed in the app on his or her smartphone. can

Meanwhile, the controller 40 adjusts and changes the rate of change of regenerative braking torque based on the information on the passenger condition acquired through the passenger information input unit 20. To this end, the controller 40 controls the passenger condition from information on the passenger condition. It can be set to determine the score.

At this time, when a plurality of passengers board the vehicle and a plurality of passenger condition information is input, the controller 40 can calculate the final passenger condition score by summing all the scores corresponding to each of the input passenger condition information. . Table 1 below is a table showing setting data for score calculation for calculating a final passenger condition score from a plurality of passenger condition information.

Referring to the setting data for score calculation in Table 1, corresponding scores are preset for each activity state and physical condition predetermined as a passenger state. Setting data such as Table 1 may be used to calculate a final passenger condition score, that is, a comprehensive passenger condition score, in a state where the setting data is input and stored in the controller 40 in advance.

In addition, when the final passenger condition score is calculated, the controller 40 uses setting data for determining the level of regenerative braking levels (Lv1 to 5) corresponding to the calculated final passenger condition score as shown in Table 2 below. For this purpose, the controller 40 inputs and stores in advance setting data for determining levels in which the corresponding regenerative braking levels (Lv1 to 5) are preset according to the passenger condition score.

Referring to Table 2 showing an example of setting data for level determination, it can be seen that a plurality of regenerative braking levels (Lv1 to 5) are set according to passenger condition scores. That is, in the embodiment of the present invention, the regenerative braking level Lv corresponding to each section of the passenger condition score may be preset in the setting data for level determination.

In Table 2, 'Lv1' represents the highest first level among a plurality of regenerative braking levels, and 'Lv5' represents the fifth lowest level. That is, the smaller the number of levels, the higher the regenerative braking level. For example, the second level Lv2 is one level lower than the first level Lv1, and the third level Lv3 is one level lower than the second level Lv2. The fourth level Lv4 is one step lower than the third level Lv3 and one step higher than the fifth level Lv5.

As described above, in the present invention, the regenerative braking levels (Lv1 to 5) are divided into several levels of intensity or degree of regenerative braking according to the passenger condition of the vehicle, and each regenerative braking level (Lv1 to 5) has a different regenerative braking torque with respect to time. A torque profile indicating a rate of change (%) may be preset.

More specifically, a torque profile having a different torque change rate for each regenerative braking level (Lv1 to 5) is set in advance in the regenerative braking torque region, which is negative torque, and continuously changing at a different torque change rate for each regenerative braking level. After the torque profile data representing the regenerative braking torque value is set, it can be input to the controller 40 and used.

Accordingly, the controller 40 determines regenerative braking levels (Lv1 to 5) corresponding to the points from the final passenger condition score, selects a torque profile corresponding to the determined regenerative braking level, and then in real time according to the selected torque profile. The regenerative braking operation of the motor 52 is controlled by using the regenerative braking torque value as a command value. Accordingly, the actual regenerative braking torque of the motor 52 can be controlled with a torque change rate and a torque profile corresponding to the current state of the passenger and the regenerative braking levels (Lv1 to 5).

Regenerative braking levels in the present invention include a plurality of levels (Lv1 to 5) with high and low torque change rates step by step, and may include a total of five levels with different torque change rates as shown in Table 2, but the present invention is not limited by That is, the number of regenerative braking levels in which torque change rates are set differently according to passenger conditions can be variously changed, such as 6 or 4.

4 is a diagram illustrating a control state of regenerative braking torque according to a regenerative braking level in an embodiment of the present invention. With the brake pedal off, the driver depresses the accelerator pedal (accelerator pedal 'on') and then accelerates. When the foot is released from the pedal (accelerator pedal 'off'), the state in which the coast regen. torque changes during coasting until the target regenerative braking torque for each regenerative braking level (Lv1 ~ 5) is reached are showing

The motor torque shown in FIG. 4 may be a motor torque command generated by the first controller 41 (eg, VCU) and output to the second controller 42 (eg, MCU), and at the same time controlled according to the motor torque command. It may be the actual motor torque. Regarding motor torque, positive (+) torque is drive torque, and negative (-) torque is regenerative braking torque.

Referring to FIG. 4 , the motor torque (command or actual motor torque) is positive (+) torque when the accelerator pedal is on, but the motor torque is negative from the point when the accelerator pedal is completely off by the driver. It becomes the regenerative braking torque, which is the torque of (-).

In addition, the rate of change of regenerative braking torque varies depending on the regenerative braking level (Lv1 to 5) until the target regenerative braking torque is reached. A change rate of the regenerative braking torque during the set first time period t1 from the point at which the application of the regenerative braking torque, which is torque, starts, may be set to a larger value.

At this time, from the point when the second time t2 set after the first time t1 has elapsed until the target regenerative braking torque is reached or during the third time t3 set after the second time t2 As the braking levels Lv1 to 5 are higher, the regenerative braking torque change rate may be set to a smaller value.

In addition, during the second time period t2 after the first time period t1, the regenerative braking torque value may be continuously and smoothly changed or maintained constant according to the regenerative braking levels Lv1 to 5.

In the present invention, the larger the regenerative braking torque change rate (%) is, the more rapidly the regenerative braking torque is changed. That is, as the rate of change (%) of regenerative braking torque increases, the absolute value of regenerative braking torque, which is negative (-) torque, increases more rapidly.

In addition, in the present invention, since the regenerative braking torque of the motor 52 is controlled by using the regenerative braking torque value determined according to the regenerative braking levels (Lv1 to 5) as a command value, the higher the regenerative braking level and the rate of change of the regenerative braking torque The absolute value of the regenerative braking torque increases more rapidly in the initial stage of regenerative braking for at least the first time period t1 after the start of application of the regenerative braking torque.

As described above, in the present invention, after the regenerative braking levels (Lv1 to 5) are determined from the current passenger condition information while the vehicle is driving, the real-time regenerative braking torque command is issued according to the preset torque profile for the determined regenerative braking level during regenerative braking. can be determined, and the regenerative braking torque of the motor 52 can be controlled in real time according to the regenerative braking torque command according to time.

Referring to FIG. 4 , an example of a torque profile set for each regenerative braking level (Lv1 to 5) is shown when the driver depresses the accelerator pedal (accelerator pedal 'on') and then releases the accelerator pedal (accelerator pedal 'off'). has been

According to the example of FIG. 4 , in the torque profile set for each regenerative braking level (Lv1 to 5), the higher the regenerative braking level, the higher the regenerative braking initial stage of regenerative braking for at least the first predetermined time period t1 from the time when the regenerative braking torque is applied. That is, it can be seen that the regenerative braking torque change rate (%) is set to indicate a large value, and the regenerative braking torque value is set to increase more rapidly.

In the present invention, in the torque profile in which the regenerative braking torque value (regenerative braking torque command value) that changes with time during regenerative braking is set, the regenerative braking torque value is in the form of a straight line, a curve, or It can be set to a value that continuously changes over time in the form of a mixture of straight lines and curves.

5 is a diagram showing another example of a torque profile set according to the regenerative braking level in the present invention, and shows an example of torque profile data in which the regenerative braking torque value is set to a value that continuously changes with time in the form of a straight line. there is.

Referring to FIG. 5, it can be seen that the higher the regenerative braking level (Lv1 to 5), the higher the rate of change (%) of the regenerative braking torque with respect to time (the slope of the straight line representing the torque profile) is set to a larger value, Accordingly, the higher the regenerative braking level determined according to the passenger condition while driving in the actual vehicle, the more rapidly the regenerative braking torque command value, which is negative torque during regenerative braking, increases.

As a result, the regenerative braking operation of the motor 52 is controlled according to the regenerative braking torque command generated and output in real time, so that a vehicle deceleration suitable for the current passenger condition in the vehicle can be generated and controlled during regenerative braking.

As described above, in the present invention, the torque profile data as shown in FIG. 4 or 5 may be used to control the regenerative braking torque of the motor 52 according to the passenger condition in the vehicle in a state where the torque profile data is input and stored in the controller 40 in advance.

The torque profile data as shown in FIG. 4 or FIG. 5 only represents examples in which torque profiles are set for each regenerative braking level (Lv1 to 5) in the regenerative braking control considering the passenger condition according to the present invention, but the present invention is not limited thereto. It is not, and the setting of the torque profile for each actual regenerative braking level can be changed in various ways.

Meanwhile, FIG. 6 is a flow chart illustrating a regenerative braking control process according to an embodiment of the present invention, and shows the entire process of performing the regenerative braking control considering the passenger condition.

When the regenerative braking control considering the passenger condition during vehicle driving is in an on state, information on the passenger condition is input to the controller 40 (first controller) through the passenger information input unit 20, and through this, the controller 40 (first controller) In step 40, it is possible to know whether passengers are boarding, the number of passengers, etc. (refer to steps S11, S12, and S13).

In addition, the controller 40 determines the current passenger condition in the vehicle based on the information input through the passenger information input unit 20 (S14), and determines the regenerative braking level according to the passenger condition (S15). In addition, the controller 40 displays the current passenger condition and regenerative braking level through the display unit 60 (S16).

In addition, the controller 40 performs regenerative braking control according to the regenerative braking level (S17), and at this time, the first controller 41 determines the regenerative braking torque value according to the regenerative braking level in real time during regenerative braking, and determines the torque value The regenerative braking torque command corresponding to is generated and output in real time. Then, the second controller 42 controls the regenerative braking operation of the motor 52 through the inverter 51 according to the regenerative braking torque command output from the first controller 41 .

If the regenerative braking control is not on or there is no passenger in the vehicle, the controller 40 performs normal regenerative braking, not the regenerative braking control of step S17 in consideration of the passenger condition. Braking control is performed (S18).

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims It is also included in the scope of the present invention.

10: driving information detection unit
11: accelerator pedal detection unit
12: brake pedal detection unit
20: passenger information input unit
21: sensor
22: mobile terminal
30: input unit
40: controller
41: first controller
42: second controller
51: Inverter
52: motor
60: display

Claims (14)

a driving information detection unit that detects vehicle driving information while the vehicle is driving;
a passenger information input unit for inputting information on a passenger's condition in the vehicle; and
The current passenger condition in the vehicle is determined from information input from the passenger information input unit, and regeneration is performed in real time during regenerative braking based on the vehicle driving information detected and input by the driving information detection unit and the determined passenger condition information in the vehicle. An apparatus for controlling regenerative braking of a vehicle comprising a controller that determines a braking torque value and controls regenerative braking of a motor according to the determined regenerative braking torque value.
The method of claim 1,
The passenger information input unit,
A sensor mounted on a vehicle to detect a state of a passenger in the vehicle; and
The regenerative braking control device of a vehicle, characterized in that it includes at least one of a passenger's portable terminal communicatively connected to the controller.
The method of claim 1,
The information on the passenger condition in the vehicle input from the passenger information input unit,
An apparatus for controlling regenerative braking of a vehicle, characterized in that it is information on one or both of an active state and a physical state of a passenger.
The method of claim 3,
The activity state of the passenger includes at least one of mobile phone use, reading, game, sleep, eating, drinking coffee or beverage, and applying makeup, and the physical state of the passenger includes a dizzy state. A regenerative braking control device for a vehicle.
The method of claim 1,
The controller
After determining the current passenger condition in the vehicle from the information input from the passenger information input unit, calculating a passenger condition score indicating the current passenger condition in the vehicle using preset and input setting data for score calculation,
Using the calculated passenger condition score, a regenerative braking level corresponding to the passenger condition score is determined from previously set and input setting data for level determination;
The regenerative braking control device of a vehicle, characterized in that it is set to determine a state in which regenerative braking is required from the vehicle driving information and determine a real-time regenerative braking torque value according to a torque profile corresponding to the determined regenerative braking level during regenerative braking.
The method of claim 5,
The driving information detection unit,
an accelerator pedal detection unit that detects accelerator pedal input information according to a driver's accelerator pedal operation; and
An apparatus for controlling regenerative braking of a vehicle, comprising a brake pedal detector detecting brake pedal input information according to a driver's brake pedal operation.
The method of claim 5,
The regenerative braking level includes a plurality of levels having different rates of change of regenerative braking torque,
Torque profile data indicating continuous regenerative braking torque values having different rates of change of regenerative braking torque for each of the plurality of levels are previously input and stored in the controller, and real-time regenerative braking is performed according to the determined regenerative braking level from the torque profile data during regenerative braking. A regenerative braking control device for a vehicle, characterized in that the torque value is determined by the controller.
detecting vehicle driving vehicle driving information and inputting the vehicle driving information to a controller;
inputting information about a passenger's condition in the vehicle to the controller by a passenger information input unit;
determining, by the controller, a current passenger condition in the vehicle from information input from the passenger information input unit;
determining, by the controller, a regenerative braking torque value in real time during regenerative braking based on the vehicle driving information input by the driving information detector and the determined passenger condition information in the vehicle; and
and controlling, by the controller, regenerative braking of the motor according to the determined regenerative braking torque value.
The method of claim 8,
The passenger information input unit,
A sensor mounted on a vehicle to detect a state of a passenger in the vehicle; and
The method for controlling regenerative braking of a vehicle, comprising at least one of passenger's portable terminals communicatively connected to the controller.
The method of claim 8,
The information on the passenger condition in the vehicle input from the passenger information input unit,
A method for controlling regenerative braking of a vehicle, characterized in that it is information on one or both of an active state and a physical state of a passenger.
The method of claim 10,
The active state of the passenger includes at least one of cell phone use, reading, gaming, sleeping, eating, drinking coffee or beverage, and applying makeup, and the physical state of the passenger includes a dizzy state. A method for controlling regenerative braking of a vehicle.
The method of claim 8,
In the step of determining the regenerative braking torque value,
The controller
Calculate a passenger condition score representing the current passenger condition in the vehicle using preset and input setting data for score calculation;
Using the calculated passenger condition score, a regenerative braking level corresponding to the passenger condition score is determined from previously set and input setting data for level determination;
The regenerative braking control method of a vehicle, characterized in that determining a state in which regenerative braking is required from the vehicle driving information and determining a real-time regenerative braking torque value according to a torque profile corresponding to the determined regenerative braking level during regenerative braking.
The method of claim 12,
The driving information detection unit,
an accelerator pedal detection unit that detects accelerator pedal input information according to a driver's accelerator pedal operation; and
A method for controlling regenerative braking of a vehicle, comprising: a brake pedal detector detecting brake pedal input information according to a driver's brake pedal operation.
The method of claim 12,
The regenerative braking level includes a plurality of levels having different rates of change of regenerative braking torque,
Torque profile data indicating continuous regenerative braking torque values having different rates of change of regenerative braking torque for each of the plurality of levels are previously input and stored in the controller, and real-time regenerative braking is performed according to the determined regenerative braking level from the torque profile data during regenerative braking. A method for controlling regenerative braking of a vehicle, characterized in that the torque value is determined by the controller.

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