HANDLE SYSTEM, A VEHICLE EQUIPPING SUCH A HANDLE SYSTEM AND METHOD FOR CONTROLLING THE HANDLE SYSTEM

Abstract

The present disclosure provides a handle system comprising a handle receptacle, a handle body, a drive device, a position sensing device, a sensor-detected element, and a control device. The handle body is attached to the handle receptacle and is movable relative to the handle receptacle between a retracted position, a first extended position, and a second extended position. The drive device is configured to drive the handle body so that it extends from the retracted position to the first extended position and retracts from the first extended position to the retracted position. The position sensing device comprises at least two position sensors arranged on either side of the handle receptacle and the handle body, and spaced apart in a direction of movement of the handle body.The sensor-detected element is arranged on the other side of the handle receptacle and the handle body and has a sensor-detected area. The sensor-detected element is designed such that when one of the at least two position sensors enters the sensor-detected area, the sensor-detected element is detected by the position sensor entering the sensor-detected area. The control device is communicatively connected to the position detection device, the drive device, and the electronic locking device.

Description

CROSS-REFERENCE TO RELATED REGISTRATIONS The present disclosure claims priority from Chinese patent application No. 202411906809.0, filed on December 23, 2024, entitled “MOVABLE PART FOR VEHICLE”, the entire contents of which are incorporated herein by reference. TECHNICAL AREA The present disclosure relates to a handle system, in particular a handle system for a door of a vehicle, a vehicle comprising the handle system and a method for controlling the handle system. STATE OF THE ART A vehicle door is fitted with a handle consisting of a handle receptacle attached to a metal plate of the door and a handle body that moves relative to the receptacle. In some conventional flush handles, a drive mechanism moves the handle body relative to the receptacle so that an outer surface of the handle body is essentially flush with the vehicle door. When it is necessary to open the door from the outside of the vehicle, the drive mechanism first moves the handle body so that it extends relative to the receptacle, allowing an operator to pull the handle body from the outside to unlock an electronic locking device on the vehicle door, thereby opening the vehicle door. SUMMARY OF THE REVELATION According to a first aspect, the present disclosure provides a handle system for a vehicle door with an electronic locking device. The handle system comprises a handle receptacle, a handle body, a drive device, a position sensing device, a sensor-detected element, and a control device. The handle body is attached to the handle receptacle and is movable relative to the handle receptacle between a retracted position, a first extended position, and a second extended position. The drive device is configured to drive the handle body so that it extends from the retracted position to the first extended position and retracts from the first extended position to the retracted position.The position detection device has at least two position sensors, which are arranged either on the handle receptacle or the handle body and spaced apart in one direction of movement of the handle body. The sensor-detected element is arranged on the other side of the handle receptacle and the handle body and has a sensor-detected area. The sensor-detected element is designed such that when one of the at least two position sensors enters the sensor-detected area, the sensor-detected element is detected by the position sensor entering the sensor-detected area. The control device is communicatively connected to the position detection device, the drive device, and the electronic locking device.The control device is designed such that, depending on whether the at least two position sensors detect the sensor-detected element, it determines whether the handle body reaches the retracted position, the first extended position, or the second extended position, in order to control the drive device so that it stops the drive of the handle body from retracting when it is determined that the handle body reaches the retracted position, to control the drive device so that it stops the drive of the handle body from extending when it is determined that the handle body reaches the first extended position, and to control the electronic locking device so that it unlocks when it is determined that the handle body reaches the second extended position. In some embodiments, the at least two position sensors comprise a first position sensor and a second position sensor. In the direction of movement of the handle body, the second position sensor is located furthest out and the first position sensor furthest in. When the handle body reaches the retracted position, the second position sensor detects the sensor-detected element. When the handle body reaches the first extended position, the first position sensor detects the sensor-detected element. When the handle body reaches the second extended position, neither of the at least two position sensors detects the sensor-detected element. In some embodiments, the control device determines, based on a detection signal from the second position sensor, that the handle body has reached the retracted position, determines, based on a detection signal from the first position sensor, that the handle body has reached the first extended position, and determines, based on detection signals from both the first position sensor and the second position sensor, that the handle body has reached the second extended position. In some embodiments, the at least two position sensors further include a third position sensor. The third position sensor is arranged between the first and second position sensors. Based on a detection signal from the second position sensor, the control device determines that the handle body has reached the retracted position; based on a detection signal from the first position sensor, it determines that the handle body has reached the first extended position; and based on detection signals from the first, second, and third position sensors, it determines that the handle body has reached the second extended position. In some embodiments, the position sensors are Hall sensors. The sensor-sensed element is a magnet, and the sensor-sensed area is the magnet's magnetic field. In some embodiments, the Hall sensors are switch-type Hall sensors. The position detection device further comprises a printed circuit board, wherein the at least two position sensors are integrated on the printed circuit board and the printed circuit board has a power supply connection for connecting the at least two position sensors to a power supply and signal output connections for connecting the at least two position sensors to the control device. In some embodiments, the position detection device also has a housing. The circuit board is received and held within the housing. In some embodiments, the handle system also includes a light module. The light module is integrated on the circuit board and is switched on or off based on the position of the handle body. In some embodiments, the sensor-detected element is arranged on an inner wall of the handle receptacle and the at least two position sensors are enclosed in the handle body. The handle body has a gripping section as well as a first retaining lug and a second retaining lug on two opposite sides of the gripping section. During movement from the retracted position to the second extended position, the travel distance of the second retaining lug is greater than the travel distance of the first retaining lug. The position detection device is enclosed within the second retaining lug of the handle body. According to a second aspect, the present disclosure provides a vehicle comprising a door, an electronic locking device, and a handle arrangement as previously mentioned. The electronic locking device is arranged on the door and configured to lock or unlock the door. According to a third aspect, the present disclosure provides a method for controlling a handle system. The handle system comprises a sensor-detected element, at least two position sensors, a handle body, a handle receptacle, and a drive device. The sensor-detected element is arranged on the handle body or the handle receptacle, and the at least two position sensors are arranged on the other side of the handle body and the handle receptacle.The method comprises: detecting a relative position of the sensor-detected element relative to the at least two position sensors by means of the at least two position sensors; determining a position of the handle body relative to the handle receptacle as a function of detection signals received by the at least two position sensors; and controlling the drive device to stop the drive of the handle body from retracting, to stop the drive of the handle body from extending, or to control an electronic locking device to unlock, depending on the position of the handle body relative to the handle receptacle. In some embodiments, the step of determining the position of the handle body relative to the handle receptacle based on the detection signals received from the at least two position sensors comprises the following: if a first position sensor, located between the at least two position sensors in one direction of movement of the handle body, detects the sensor-detected element, determining that the handle body has reached a first extended position; if a second position sensor, located furthest outward between the at least two position sensors in the direction of movement of the handle body, detects the sensor-detected element, determining that the handle body has reached a retracted position; and if neither of the at least two position sensors detects the sensor-detected element, determining that the handle body has reached a second extended position. In some embodiments, the step of controlling the drive device to stop the drive of the handle body from retracting, stopping the drive of the handle body from extending, or controlling the electronic locking device to unlock based on the position of the handle body relative to the handle receptacle includes: when the handle body reaches the first extended position, stopping the drive of the handle body from extending; when the handle body reaches the retracted position, stopping the drive of the handle body from retracting; and when the handle body reaches the second extended position, controlling the electronic locking device to unlock. The handle system of the present disclosure can accurately indicate that the handle body is in the retracted position, the first extended position, or the second extended position relative to the handle receptacle by providing the position sensing device and the sensor-detected element that interact at the handle receptacle and the handle body. Based on the position of the handle body, the control device of the handle system can control the drive device such that the drive device ceases to drive the handle body when the handle body is moved into the retracted position and the first extended position, and the control device can control the unlocking of the electronic locking device when the handle body is moved into the second extended position. Further tasks and advantages of the present disclosure will become apparent from the description below with reference to the attached drawings and can contribute to a comprehensive understanding of the present application. BRIEF DESCRIPTION OF THE FIGURES Fig. 1A is a perspective view of a handle system according to an embodiment of the present disclosure, wherein a handle body of the handle system is in a retracted position; Fig. 1B is a top view of the handle system shown in Fig. 1A; Fig. 2A is a perspective view of the handle system shown in Fig. 1A, wherein the handle body of the handle system is in a first extended position; Fig. 2B is a top view of the handle system shown in Fig. 2A; Fig. 3A is a perspective view of the handle system shown in Fig. 1A, wherein the handle body of the handle system is in a second extended position; Fig. 3B is a top view of the handle system shown in Fig. 3A; Fig. 3C is a perspective view of the handle system shown in Fig. 1A, wherein the handle body of the handle system is in another second extended position; Fig. 3D is a top view of the handle system shown in Fig.3C is the handle system shown; Fig. 4A is a structural perspective view of a position sensing device shown in Fig. 1A; Fig. 4B is an exploded view of the position sensing device shown in Fig. 4A; Figs. 5A-5D show simplified schematic views showing the relative positions of a handle receptacle and the handle body during movement of the handle body of the handle system according to one embodiment of the present disclosure; Figs. 6A-6C show simplified schematic views showing the relative positions of the handle receptacle and the handle body during movement of the handle body of the handle system according to another embodiment of the present disclosure; Fig. 7 is a terminal block diagram of a control device, the position sensing device, a drive device, and an electronic locking device in Fig. 1A; Fig. 8 is a simplified circuit diagram of a printed circuit board in Fig. 4A; Fig.Figure 9 is a structural block diagram of the control device of the grip system in Figure 1A; Figure 10 is a schematic view of a vehicle with the grip system shown in Figure 1A; Figure 11 shows a flowchart of a method for controlling the grip system shown in Figure 1A; Figure 12 illustrates step 1162 in Figure 11; Figure 13 illustrates step 1163 in Figure 11. Main reference sign Handle system 100; handle receptacle 101; sensor-detected element 105; vehicle 1060; door 107; handle body 110; first retaining bar 111; second retaining bar 112; cavity 115; gripping section 116; position sensing device 120; control device 150; drive device 160; electronic locking device 170; first connection 213; second connection 214; receiving cavity 218; housing 421; circuit board 422; notch 423; rib 424; position sensor 425; first position sensor 425a; third position sensor 425b; second position sensor 425c; light module 438; position sensing device 620; grounding terminal 733; detection circuit 831; power supply terminal 832; Grounding terminal 833; Signal output terminal 834; Signal output terminal 835; Signal output terminal 836; LED terminal 837; Resistor 837a; Resistor 837b; Resistor 837c; First conductor track 841; Second conductor track 842; Third conductor track 843; Bus 951; Processor 952; Input interface 953; Output interface 954;Memory 955; Program 956; Connection line 957; Connection line 958.; DETAILED DESCRIPTION OF EXECUTION FORMS The following describes various specific embodiments of the present disclosure with reference to the drawings that form part of this patent specification. It is understood that, although terms indicating directions such as "front," "rear," "upper / upper / upper," "lower / lower / lower," "left," "right," "inner / inner / inner," and "outer / outer / outer" are used in the present disclosure to describe structural parts and elements in various examples, these terms are used here only for simplified illustration and are determined based on the exemplary orientations shown in the accompanying drawings. Since the arrangements disclosed in the present disclosure can exist in several directions in the embodiments, these directional indications are merely illustrative and should not be considered as limitations. Figures 1A to 3D illustrate the positional relationship of a handle body 110 and a handle receptacle 101 of a handle system 100 according to an embodiment of the present disclosure, wherein the handle body 110 is in various positions. In Figures 1A and 1B, the handle body 110 is in a retracted position. In Figures 2A and 2B, the handle body 110 is in a first extended position. In Figures 3A and 3B, the handle body 110 is in an exemplary second extended position. In Figures 3C and 3D, the handle body 110 is in another exemplary second extended position. As shown in Figures 1A-3D, the handle system 100 is used for a door 107 of a vehicle 1060, which is equipped with an electronic locking device 170 (see Figure 10). The electronic locking device 170 is arranged on the door 107 and is designed to lock or unlock the door 107. When the electronic locking device 170 is locked, the door 107 cannot be opened. When the electronic locking device 170 is unlocked, the door 107 can be opened. The handle system 100 comprises the handle receptacle 101, the handle body 110, a drive unit 160, and a control unit 150. The handle receptacle 101 is attached to the door 107 of the vehicle. The handle body 110 is attached to the handle receptacle 101 and can move relative to the handle receptacle 101 between the retracted position, the first extended position, and the second extended position. The control unit 150 is communicatively connected to the drive unit 160 and the electronic locking device 170 to control the drive unit 160 so that it drives the handle body 110 to move and controls the unlocking of the electronic locking device 170. The handle body 110 is attached to the handle receptacle 101 via a connecting mechanism. This connecting mechanism is linked to the drive device 160, enabling the drive device 160 to actuate the connecting mechanism, thereby driving the handle body 110 to extend from the retracted position to the first extended position and vice versa. In the illustrated embodiment, the connecting mechanism comprises a first connection 213 and a second connection 214. In some embodiments, the drive device 160 is an electric drive.The person skilled in the art should understand that the connecting mechanism can be designed as any structure according to the specific requirements, as long as the drive device 160 can drive the handle body 110 so that it moves back and forth between the retracted position and the first extended position. The handle body 110 is moved from the first extended position to the second extended position by a pulling force applied by an operator from the outside of the handle system 100. In this embodiment, the handle body 110 essentially has the form of a hollow, square frame, with the central section forming a receiving cavity 218 for operation by the operator's hand. The handle body 110 has a gripping section 116 on one front face of the receiving cavity 218. The handle body 110 is provided on two opposite sides (the left and the right sides, as shown in Fig. 2B) of the gripping section 116 with a first retaining rib 111 and a second retaining rib 112.In the illustrated embodiment, the first connecting element 213 connects the first retaining web 111 of the handle body 110 to an inner side wall of the handle receptacle 101, and the second connecting element 214 connects the second retaining web 112 of the handle body 110 to the inner side wall of the handle receptacle 101. When the operator's hand extends into the receiving cavity 218, the operator's hand can hold the gripping section 116 to exert a pulling force on the handle body 110, so that the handle body 110 is moved from the first extended position to the second extended position under the influence of the external pulling force exerted by the operator. In the illustrated embodiment, the handle system 100 further comprises an elastic component, such as a torsion spring (not shown), which is arranged on the handle receptacle 101. The torsion spring is operatively connected to the second connecting element 214. After the handle body 110 has been released by the operator, the handle body 110 can be moved from the second extended position to the first extended position by a restoring force provided by the torsion spring. In this way, the handle body 110 can move back and forth between the first extended position and the second extended position under the influence of the external tensile force applied by the operator and the restoring force of the torsion spring. In the retracted position of the handle body 110 according to Figs. 1A and 1B, the handle body 110 is generally received within the handle receptacle 101, and an outer surface of the handle body 110 is substantially flush with an outer surface of the handle receptacle 101. If the handle receptacle 101 is attached to the door 107 of the vehicle, the outer surface of the handle body 110 can also be substantially flush with an outer surface of the door 107. Therefore, the handle body 110 can be visually concealed within the door 107 of the vehicle. If the handle system 100 receives a drive signal (e.g., a drive signal indicating the door opening, e.g., a car key proximity signal or a car key unlock signal), the control device 150 controls the drive device 160 so that it drives the handle body 110 substantially in parallel, so that the handle body 110 is extended translationally from the retracted position shown in Fig. 1A and Fig. 1B to the first extended position, as shown in Fig. 2A and Fig. 2B. When the handle body 110 reaches the first extended position, as shown in Figures 2A and 2B, the control device 150 controls the drive device 160 to stop the drive of the handle body 110 from extending. In the first extended position, the outer surface of the handle body 110 is substantially parallel to the handle receptacle 101, and the first retaining lug 111 and the second retaining lug 112 are moved relative to the handle receptacle 101 by substantially equal distances. The handle body 110 extends outward relative to the handle receptacle 101 to expose the receiving cavity 218 and the gripping section 116 of the handle body 110, allowing the operator to extend their hand into the receiving cavity 218 and grasp the gripping section 116, thereby pulling the handle body 110. When the operator pulls the handle body 110, the external pulling force drives the handle body 110 to perform a rotational movement, essentially with an inner end of the first retaining lug 111, which is connected to the first connecting link 213 as a pivot point. The second retaining lug 112 of the handle body 110 is rotated away from the handle receptacle 101. The second connecting link 214 of the connecting mechanism moves outward with the second retaining lug 112 until the handle body 110 is rotated into the second extended position, as shown in Figures 3A and 3B. During this process, the torsion spring builds up the restoring force. When the handle body 110 reaches the second extended position, as shown in Figs. 3A and 3B, the control device 150 unlocks the electronic locking device 170 on the vehicle door 107, allowing the operator to continue pulling the handle body 110 to open the vehicle door 107. During this process, the torsion spring continues to build up the restoring force. When the operator stops pulling on the handle body 110, the handle body 110 returns to its first extended position, shown in Figures 2A and 2B, under the action of the restoring force of the torsion spring. When the handle system 100 receives another drive signal (e.g., a signal for the door closing process), the control device 150 controls the drive device 160, which drives the handle body 110 so that it moves translationally into the retracted position by means of the connecting mechanism. Once the handle body 110 is retracted into the retracted position shown in Figures 1A and 1B, the control device 150 stops the drive of the handle body from retracting. In this way, the handle body 110 of the handle system 100 can move between the retracted position, the first extended position and the second extended position. In some emergency situations, the handle body 110 can rotate directly from the retracted position to a second extended position. This second extended position differs from the second extended position mentioned above; however, both second extended positions are positions in which the unlocking of the electronic locking device 170 can be triggered. In this case, when the handle body 110 is in the retracted position, as shown in Figures 1A and 1B, the operator can push the side of the handle body 110 near the first rib 111 to cause the side of the handle body 110 near the second rib 112 to extend outwards. After the receiving cavity 218 is exposed, the operator forcefully pulls the gripping section 116 to extend the handle body 110 directly from the retracted position, as shown in Figures 1A and 1B.As shown in Fig. 1B, the handle body 110 is rotated into the second extended position, as shown in Fig. 3C and Fig. 3D. When the handle body 110 is in the second extended position, as shown in Fig. 3C and Fig. 3D, the control device 150 can also control the unlocking of the electronic locking device 170 on the door 107 of the vehicle, allowing the operator to open the door 107 of the vehicle. The grip system 100 further comprises a position sensing device 120 (an enlarged dashed circle 103 in Fig. 1A illustrates the position sensing device 120) and a sensor-detected element 105 (shown in more detail in Figs. 5A-6C). The position sensing device 120 is communicatively connected to the control device 150. The position sensing device 120 is arranged at one end of the grip receptacle 101 and the grip body 110, and the sensor-detected element 105 is arranged at the other end of the grip receptacle 101 and the grip body 110, so that the position sensing device 120 can move relative to the sensor-detected element 105. The position sensing device 120 detects the relative positions of the sensor-detected element 105 relative to the position sensing device 120 and sends corresponding signals to the control device 150.The control device 150 determines the relative positions of the handle receptacle 101 and the handle body 110 based on recognition signals. In the illustrated embodiment, the position detection device 120 is enclosed within the handle body 110. The sensor-detected element 105 is arranged on an inner wall of the handle receptacle 101. For example, the second retaining web 112 of the handle body 110 is hollow and has a cavity 115, and the position detection device 120 is enclosed in the cavity 115 of the second retaining web 112 and near the upper surface of the second retaining web 112. The sensor-detected element 105 is arranged on an inner surface of the upper wall of the handle receptacle 101. In the illustrated embodiment, during the movement of the handle body 110 from the retracted position to the first extended position, the first web 111 and the second web 112 of the handle body 110 perform the translational movement synchronously, and during the movement of the handle body 110 from the first extended position to the second extended position, the handle body 110 performs the rotational movement with the inner end of the first web 111 as the pivot point. The second web 112 thus has a greater travel distance than the first web 111. Therefore, by arranging the position detection device 120 on the second web 112, the position of the handle body 110 can be displayed more accurately. Experts in the field should understand that in some embodiments the position detection device 120 may also be enclosed on the right side of the second retaining rib 112 and the sensor-detected element 105 is accordingly arranged on an inside of a right side wall of the handle receptacle 101. In some embodiments, the sensor-detected element 105 has a sensor-detected area S (see Figs. 5A-6C). The position detection device 120 has at least two position sensors 425 (see Figs. 4A and 4B). The at least two position sensors 425 are spaced apart in one direction of movement of the handle body 110. If the relative position between the at least two position sensors 425 and the sensor-detected element 105 is such that one of the at least two position sensors 425 enters the sensor-detected area S of the sensor-detected element 105, the sensor-detected element 105 can be detected by the position sensor that enters the sensor-detected area S.If the relative position between the at least two position sensors 425 and the sensor-detected element 105 is such that at least one position sensor 425 leaves the sensor-detected area S of the sensor-detected element 105, the sensor-detected element 105 cannot be detected by the position sensor that leaves the sensor-detected area S. Depending on whether the sensor-detected element 105 is detected, each position sensor can send a corresponding detection signal indicating the position of the handle body 110 relative to the handle receptacle 101. In this embodiment, the sensor-detected element 105 is a magnet, and the sensor-detected area S is the magnet's magnetic field. Furthermore, the position sensor 425 is a Hall sensor configured to detect the magnet's magnetic field. In some more specific embodiments, the Hall sensor is a switch-type Hall sensor. The switch-type Hall sensor generates a low-level or high-level signal depending on whether the magnet is detected. In certain embodiments, a low-level signal can be sent when the switch-type Hall sensor detects the magnet. A high-level signal can then be emitted when the switch-type Hall sensor does not detect the magnet. Compared to other detection devices, the Hall sensor is smaller while offering higher detection accuracy and is particularly suitable for being enclosed in a confined space within the second retaining rib 112 of the handle body 110.In other embodiments, the position sensor can be a different type of position sensor. In this way, the control device 150 can determine, by arranging the sensor-detected element 105 and the at least two position sensors of the position detection device 120 in corresponding positions, whether the handle body 110 reaches the retracted position, the first extended position, or the second extended position, depending on whether the position sensors detect the sensor-detected element 105. This is described in detail below in connection with Figures 5A-5D and 6A-6C. Those skilled in the art should understand that in other embodiments, the sensor-detected element 105 may be enclosed within the handle body 110, and thus the position detection device 120 may be arranged on the inner wall of the handle receptacle 101 in a corresponding position. Figures 4A and 4B show a detailed structure of the position sensing device 120. Figure 4A illustrates a perspective structural view of the position sensing device 120, and Figure 4B shows an exploded view of the position sensing device 120. As shown in Figures 4A and 4B, the position sensing device 120 comprises a housing 421 and a printed circuit board 422. The housing 421 is attached to the inside of an upper wall of the second retaining rib 112 of the handle body 110, for example by adhesive bonding. The printed circuit board 422 is mounted in the housing 421. Each position sensor 425 is integrated on the circuit board 422, and the circuit board 422 connects each position sensor 425 to a power supply and the control device 150 to provide power to the position sensor 425 and outputs a detection signal generated by the position sensor 425 to the control device 150. The housing 421 has the form of a hollow strip with a front opening. One longitudinal direction of the housing 421 is essentially the same as one longitudinal direction of the second web 112. The hollow housing 421 can conveniently accommodate the printed circuit board 422 and provide a defined heat dissipation space. The printed circuit board 422 is essentially rectangular in shape and is inserted into the housing 421 through the front opening. After attaching a handle cover plate (not shown) to a front face of the handle body 110, the front opening of the housing 421 can be closed by the handle cover plate. In the illustrated embodiment, the length of the housing 421 is essentially equal to or slightly greater than the length of the printed circuit board 422. A pair of ribs 424 is provided on the inner side of each of the left and right side walls of the housing 421.The pair of ribs 424 extends longitudinally along the housing 421 and is parallel to each other in a vertical direction of the housing 421 by a distance corresponding to the thickness of the printed circuit board 422. In this way, the printed circuit board 422 can be inserted into the housing 421 through the front opening of the housing 421 until it abuts a rear wall of the housing 421. The left and right side edges of the printed circuit board 422 can then engage between the pair of ribs 424 on each side wall of the housing 421 to ensure that the printed circuit board 422 cannot move relative to the housing 421. If the housing 421 is attached to the handle 110, the printed circuit board 422 also cannot move relative to the handle 110.In this embodiment, a notch 423 is formed in the underside of the front of the housing 421, and wires or conductors connected to the circuit board 422 can be passed through the notch 423 to allow for a more orderly arrangement of a conductor bundle. The position sensors 425 are integrated above the circuit board 422 such that they face the handle receptacle 101, thus facilitating the detection of the sensor-detected element 105 located on the inside of the upper wall of the handle receptacle 101. In the illustrated embodiment, the position detection device 120 has three position sensors: a first position sensor 425a, a second position sensor 425c, and a third position sensor 425b. The first position sensor 425a, the third position sensor 425b, and the second position sensor 425c are spaced apart along the longitudinal direction of the circuit board 422. Furthermore, the three position sensors are also spaced apart along the direction of movement of the handle body 110.The second position sensor 425c is located outside the first position sensor 425a, and the third position sensor 425b is located between the second position sensor 425c and the first position sensor 425a. The positions of the three position sensors are fixed relative to the handle body 110 when the circuit board 422 is fixed relative to the handle body 110. Depending on whether the position sensors 425 detect the sensor-detected element 105 on the handle receptacle 101, the position of the handle body 110 relative to the handle receptacle 101 can therefore be displayed. For example, it can be shown whether the handle body 110 has reached the retracted position, the first extended position, or the second extended position. The control device 150 determines the position of the handle body 110 according to the signals sent by the three position sensors and executes a corresponding operation. For example, if it is detected that the handle body 110 has reached the retracted position, the control device 150 controls the drive device 160 to stop the drive of the handle body 110 from retracting.When it is detected that the handle body 110 has reached the first extended position, the control device 150 controls the drive device 160 to stop the drive of the handle body 110 from extending. When it is detected that the handle body 110 has reached the second extended position, the control device 150 controls the electronic locking device 170 to unlock it. In some embodiments, the handle system 100 may further include a light module 438. The light module 438 is also integrated on the circuit board 422 and is switched on or off based on the position of the handle body 110. In some embodiments, the light module 438 has an LED light that is switched on when the handle body 110 is in the first extended position and switched off when the handle body 110 is in the retracted position. In some embodiments, the light module 438 has different light colors depending on the position of the handle body 110. By providing the light module 438, the handle system 100 can also have an illumination effect. Those skilled in the art should understand that the light module 438 can diffuse light by means of a light guide component, a light screen, etc. In the handle system 100 according to this embodiment, by providing the circuit board 442, the at least two position sensors can be integrated on a single circuit board 422, so that the handle system not only has sufficient detection accuracy, but also reduces the installation space for the position sensors. Figures 5A-5D illustrate simplified schematic views showing the relative positions of the handle receptacle 101 and the handle body 110 during the movement of the handle body 110 of the handle system according to one embodiment of the present disclosure, in order to illustrate the position detection principle of the position detection device 120. To illustrate the relative positions of the sensor-detected element 105 and the position detection device 120, Figures 5A-5D show the relative positions of the handle receptacle 101 and the handle body 110 of the handle system 100 as seen in Figures 1A-1B, essentially from the left side. From this perspective, the handle body 110 is moved from the inside out relative to the handle receptacle 101, i.e., from left to right, as shown in Figures 5A-5D. In the embodiment shown in Figures 5A-5D, the position detection device has three position sensors.The control device 150 determines, based on the detection signal from the first position sensor 425a, that the handle body 110 has reached the first extended position, determines, based on the detection signal from the second position sensor 425c, that the handle body 110 has reached the retracted position, and determines, based on the detection signals from the first position sensor 425a, the second position sensor 425c and the third position sensor 425b together, that the handle body 110 has reached the second extended position. Fig. 5A illustrates the relative positions of the handle receptacle 101 and the handle body 110, with the handle body 110 in the retracted position. Fig. 5B illustrates the relative positions of the handle receptacle 101 and the handle body 110 during the movement of the handle body 110 from the retracted position to the first extended position. Fig. 5C illustrates the relative positions of the handle receptacle 101 and the handle body 110, with the handle body 110 in the first extended position. Fig. 5D illustrates the relative positions of the handle receptacle 101 and the handle body 110, with the handle body 110 in the second extended position. Table 1 illustrates the detection signals sent by the position sensors of the position detection device in Figs. 5A-5D.In this embodiment, the detection signals comprise a first signal and a second signal transmitted by the first position sensor 425a, a third signal and a fourth signal transmitted by the second position sensor 425c, and a fifth signal and a sixth signal transmitted by the third position sensor 425b. Table 1 Detection signals transmitted by position sensors. Retracted position (5A) Second signal (high level) Sixth signal (high level) Third signal (low level) From the retracted position to the first extended position (5B) Second signal (high level) Fifth signal (low level) Fourth signal (high level) First extended position (5C) First signal (low level) Sixth signal (high level) Fourth signal (high level) Second extended position (5D) Second signal (high level) Sixth signal (high level) Fourth signal (high level) As shown in Fig. 5A, the handle body 110 is in the retracted position. The handle body 110 is, as described in Fig. 1B, essentially arranged within the handle receptacle 101. The handle body 110 is in the left position (i.e., the uppermost position in Fig. 1B) relative to the handle receptacle 101. In this case, the second position sensor 425c, which is located furthest out from the position sensing device 120 (i.e., on the far right in Figs. 5A-5C), is within the sensor-sensing area S of the sensor-sensing element 105, so that the second position sensor 425c can detect the sensor-sensing element 105 and generate the third signal. The third signal is a low-level signal. The first position sensor 425a and the third position sensor 425b are not located in the sensor-detected area S, so neither the first position sensor nor the third position sensor detects the sensor-detected element 105.The first position sensor 425a generates the second signal, and the third position sensor 425b generates the sixth signal. Both the second and sixth signals are high-level signals. If the handle body 110 is moved from the retracted position to the right into the first extended position in a direction shown by the arrow in Fig. 5A, the second position sensor 425c moves out of the sensor-detected area S of the sensor-detected element 105 until the second position sensor reaches the position shown in Fig. 5B. As shown in Fig. 5B, the handle body 110 leaves its retracted position but has not yet reached the first extended position. At this point, the third position sensor 425b is located in the center of the position detection device 120 within the sensor-detected area S of the sensor-detected element 105, so that the third position sensor 425b can detect the sensor-detected element 105 and generate the fifth signal. The fifth signal is a low-level signal. However, the first position sensor 425a and the second position sensor 425c are not located within the sensor-detected area S, so neither the first nor the second position sensor detects the sensor-detected element 105. The first position sensor 425a generates the second signal, and the second position sensor 425c generates the fourth signal. Both the second and fourth signals are high-level signals. If the handle body 110 is moved further to the right into the first extended position relative to the handle receptacle 101 in a direction shown by the arrow in Fig. 5B, the third position sensor 425b also gradually moves out of the sensor-detected area S of the sensor-detected element 105 until the handle body 110 reaches the first extended position, as shown in Fig. 5C. As shown in Fig. 5C, the handle body 110 is in its first extended position. The handle body 110 is located predominantly outside the handle receptacle 101. At this point, the first position sensor 425a, which is located furthest to the left of the position detection device 120, is within the sensor-detected area S of the sensor-detected element 105, so that the first position sensor 425a can detect the sensor-detected element 105 and generate the first signal. The first signal is a low-level signal. However, both the third position sensor 425b and the second position sensor 425c move out of the sensor-detected area S, so that neither the third position sensor nor the second position sensor detects the sensor-detected element 105. The third position sensor 425b generates the sixth signal and the second position sensor 425c generates the fourth signal. The sixth signal as well as the fourth signal are high-level signals.In some embodiments, the handle body 110 can even be arranged essentially completely outside the handle receptacle 101, as shown in Fig. 2B, as long as the first position sensor 425a is still within the sensor-detected area S of the sensor-detected element 105. When the operator pulls the handle body 110 into the position shown in Fig. 5C, the handle body 110 continues to move to the right relative to the handle receptacle 101, whereby all position sensors of the position detection device 120 move out of the sensor-detected area S of the sensor-detected element 105 and the handle body 110 reaches the second extended position, as shown in Fig. 5D. As shown in Fig. 5D, the handle body 110 reaches its second extended position. The second retaining rib 112 of the handle body 110 is completely outside the handle receptacle 101. At this point, the position sensing device 120 is also completely outside the handle receptacle 101, and all position sensors move out of the sensor-detected area S of the sensor-detected element 105, so that none of the position sensors detects the sensor-detected element 105. The first position sensor 425a generates the second signal, the third position sensor 425b generates the sixth signal, and the second position sensor 425c generates the fourth signal. The second, sixth, and fourth signals are all high-level signals. Therefore, when the handle body 110 is in different positions relative to the handle receptacle 101, the three position sensors of the position detection device 120 can generate different detection signals to indicate the position of the handle body 110. Accordingly, the control device 150 can determine the position of the handle body 110 based on the detection signals sent by the three position sensors of the position detection device 120. In this embodiment, the control device 150 determines that the handle body 110 has reached the retracted position based on the third signal and that it has reached the first extended position based on the first signal. The control device 150 can also determine that the handle body 110 has reached the second extended position based on the second, fourth, and sixth signals. Since the handle body 110 has a relatively long travel distance from the retracted position to the first extended position, the position sensing device 120 is provided with three position sensors spaced apart to ensure that the position in which none of the position sensors detects the sensor-detected element is the second extended position of the handle body, rather than a position of the handle body between the retracted position and the first extended position. In some other embodiments, the position sensing device 120 may have only the first position sensor 425a and the second position sensor 425c if the handle body 110 has a relatively short travel distance from the retracted position to the first extended position. Figures 6A-6C illustrate simplified schematic views showing the relative positions of the handle receptacle 101 and the handle body 110 during the movement of the handle body 110 of the handle system according to another embodiment of the present disclosure. Similar to Figures 5A-5D, Figures 6A-6C illustrate the relative positions of the handle receptacle 101 and the handle body 110 of the handle system 100 in Figures 1A-1B, essentially viewed from the left side. From this perspective, the handle body 110 is moved from the inside out relative to the handle receptacle 101, i.e., from left to right, as shown in Figures 6A-6C. In the embodiment shown in Figures 6A-6C, the position sensing device 620 has only two position sensors, namely the first position sensor 425a and the second position sensor 425c.The control device 150 determines, based on the detection signal from the first position sensor 425a, that the handle body 110 has reached the first extended position, determines, based on the detection signal from the second position sensor 425c, that the handle body 110 has reached the retracted position, and determines, based on the detection signals from both the first position sensor 425a and the second position sensor 425c, that the handle body 110 has reached the second extended position. Fig. 6A illustrates the relative positions of the handle receptacle 101 and the handle body 110, with the handle body 110 in the retracted position. Fig. 6B illustrates the relative positions of the handle receptacle 101 and the handle body 110, with the handle body 110 in the first extended position. Fig. 6C illustrates the relative positions of the handle receptacle 101 and the handle body 110, with the handle body 110 in the second extended position. Table 2 illustrates the detection signals sent by the detection sensors of the position sensing device during the operation shown in Figs. 6A-6C. In this embodiment, the detection signals comprise a first signal and a second signal sent by the first position sensor 425a, and a third signal and a fourth signal sent by the second position sensor 425c.Table 2 Detection signals sent by position sensors. Retracted position (6A) Second signal (high level) Third signal (low level) First extended position ( 6B) First signal (low level) Fourth signal (high level) Second extended position (6C) Second signal (high level) Fourth signal (high level) As shown in Fig. 6A, the handle body 110 is in the retracted position. In this case, the second position sensor 425c, which is located furthest out from the position detection device 120, is within the sensor-detected area S of the sensor-detected element 105, so that the second position sensor 425c can detect the sensor-detected element 105 and generate the third signal. However, the first position sensor 425a is not within the sensor-detected area S, so the first position sensor 425a does not detect the sensor-detected element 105 and generates the second signal. The third signal is a low-level signal and the second signal is a high-level signal. If the handle body 110 is moved from the retracted position to the first extended position in a direction shown by the arrow in Fig. 6A, the second position sensor 425c gradually moves out of the sensor-detected area S of the sensor-detected element 105 until the handle body 110 reaches the first extended position shown in Fig. 6B. As shown in Fig. 6B, the handle body 110 is in the first extended position. At this moment, the first position sensor 425a, which is located furthest to the left of the position detection device 620, is within the sensor-detected area S of the sensor-detected element 105, so that the first position sensor 425a can detect the sensor-detected element 105 and generate the first signal. However, the second position sensor 425c moves out of the sensor-detected area S, so that the second position sensor 425c no longer detects the sensor-detected element 105 and generates the fourth signal. The first signal is a low-level signal and the fourth signal is a high-level signal. When the operator pulls the handle body 110 into the position shown in Fig. 6B, the handle body 110 continues to move to the right relative to the handle receptacle 101, both position sensors of the position detection device 620 move out of the sensor-detected area S of the sensor-detected element 105 and the handle body 110 reaches the second extended position, as shown in Fig. 6C. As shown in Fig. 6C, the handle body 110 reaches its second extended position. The second retaining rib 112 of the handle body 110 is located completely outside the handle receptacle 101. At this point, the position sensing device 620 is also completely outside the handle receptacle 101; both position sensors move out of the sensor-detected area S of the sensor-detected element 105, so that neither position sensor detects the sensor-detected element 105. The first position sensor 425a generates the second signal, and the second position sensor 425c generates the fourth signal. Both the second and fourth signals are high-level signals. Therefore, when the handle body 110 is in different positions relative to the handle receptacle 101, the two position sensors of the position detection device 620 can generate different detection signals to indicate the position of the handle body 110. Accordingly, the control device 150 can determine the position of the handle body 110 based on the detection signals sent by the two position sensors of the position detection device 620. In this embodiment, the control device 150 determines that the handle body 110 has reached the retracted position based on the third signal and that it has reached the first extended position based on the first signal. The control device 150 can also determine that the handle body 110 has reached the second extended position based on the second and fourth signals. The difference between the embodiment shown in Figures 5A-5D and the embodiment shown in Figures 6A-6C is that the position detection device has a different number of position sensors. In the embodiment illustrated in Figures 5A-5D, the handle body 110 has a relatively long travel distance from the retracted position to the first extended position, while the detection range S of the sensor-detected element 105 is relatively small. Therefore, if the third position sensor 425b is not included, and the handle body 110 is in the position shown in Figures 5B and 5D, the detection signals received by the control device are, in both cases, the second and fourth signals, resulting in a failure to detect the second extended position.The expert can determine a corresponding number of Hall sensors according to the travel path of the handle body 110 from the retracted position to the first extended position and a detection range of the Hall sensors. Fig. 7 illustrates a connection block diagram of the control device 150, the position sensing device 120, the drive device 160, and the electronic locking device 170. As shown in Fig. 7, the position sensing device 120, the control device 150, and the drive device 160 of the handle system 100 are communicatively connected to the electronic locking device 170 of the door 107 of the vehicle to enable the control device 150 to receive the detection signals sent by the position sensing device 120, to control the drive device 160 based on the received detection signals, and to control the unlocking of the electronic locking device 170. Fig. 8 illustrates a simplified circuit diagram of a detection circuit 831 on the printed circuit board 422 in the embodiment shown in Fig. 4A. As shown in Fig. 8, the detection circuit 831 has a power supply terminal 832 and a ground terminal 833. The power supply terminal 832 is connected to the control device 150 and, via the control device 150, to a power supply for supplying a voltage, for example 5 V, to the detection circuit 831. The ground terminal 833 is grounded. The detection circuit 831 further has a first conductor track 841, a second conductor track 842, and a third conductor track 843. The first conductor track 841, the second conductor track 842, and the third conductor track 843 are connected in parallel between the power supply terminal 832 and the ground terminal 833. The first position sensor 425a is connected in the first conductor track 841, the third position sensor 425b in the second conductor track 842 and the second position sensor 425c in the third conductor track 843. The detection circuit 831 further comprises three signal output terminals, namely a signal output terminal 834, a signal output terminal 835, and a signal output terminal 836, all of which are communicatively connected to the control device 150 such that they each output detection signals generated by the first position sensor 425a, the third position sensor 425b, and the second position sensor 425c of the position detection device 120 to the control device 150. In some embodiments, the first position sensor 425a and a resistor 837a are connected in series in the first conductor track 841, and the signal output terminal 834 is connected to the first conductor track 841 between the first position sensor 425a and the resistor 837a.The third position sensor 425b and a resistor 837b are connected in series in the second conductor track 842, and the signal output terminal 835 is connected to the second circuit path 842 between the third position sensor 425b and the resistor 837b. The second position sensor 425c and a resistor 837c are connected in series in the third conductor track 843, and the signal output terminal 836 is connected to the third conductor track 843 between the second position sensor 425c and the resistor 837c. Following the first conductor track 841, the second conductor track 842, and the third conductor track 843, these are connected in parallel, with one end connected to the ground terminal 833 and the other end to the power supply terminal 832. The light module 438 is connected at one end to the control device 150 via an LED connector 837 and at the other end to the grounding connector 733. In this way, the control device 150 supplies the light module 438 with controllable power, enabling the handle system 100 to have a lighting effect. Therefore, the position of the handle body 110 of the handle system 100 can only be determined and the light module 438 of the handle system 100 controlled by connecting the circuit board 422 to the control device 150 via the power supply connection 832, the signal output connection 834, the signal output connection 835, the signal output connection 836 and the LED connection 837. Fig. 9 illustrates a structural block diagram of the door handle system's control device. As shown in Fig. 9, the control device 150 comprises a bus 951, a processor 952, an input interface 953, an output interface 954, and a memory 955 containing a program 956. The components in the control device 150, including the processor 952, the input interface 953, the output interface 954, and the memory 955, are communicatively connected to the bus 951 in such a way that the processor 952 can control operations of the input interface 953, the output interface 954, and the memory 955. Specifically, the memory 955 is configured to store programs, instructions, and data, and the processor 952 reads the programs, instructions, and data from the memory 955 and can write data to the memory 955.The processor 952 controls the operations of the input interface 953 and the output interface 954 by executing the programs and instructions read from the memory 955. As shown in Fig. 9, the input interface 953 is communicatively connected via a connecting line 957 to the signal output terminals of the position detection device 120 and various input commands in order to receive various parameters, such as the recognition signals of the handle system 100 or input parameters actuated by the operator, and to store these parameters in the memory 955. The output interface 954 is communicatively connected via a connecting line 958 to the drive unit 160 of the handle system 100, the electronic locking device 170 of the door 107, the power supply terminal, and the LED terminal. By executing the program 956 in the memory 955, the control device 150 controls the movement of the drive unit 160 of the handle system and the electronic locking device 170 and switches the light module 438 on or off.The input interface 953 is, for example, communicatively connected to the signal output terminals 834, 835, and 836 of the circuit board 422 to receive the recognition signals from the handle system 100. Based on the received recognition signals, the processor 952 generates a corresponding control command according to the program 956 in memory 955, including a control command for the drive device 160, an unlock command for the electronic locking device 170, and an on / off command for the light module 438. The control device 150 sends the generated control command via the output connection line 958 to the power supply terminal 832 of the circuit board 422, the LED terminal 837, the electronic locking device 170, etc.Of course, experts should understand that signals received by the input interface 953 are not limited to the detection signals, and that the control instructions generated by the processor 952 are also not limited to the instructions above. Fig. 10 illustrates a schematic representation of a vehicle with the handle system 100 shown in Fig. 1A. As shown in Fig. 10, the vehicle 1060 has the door 107, the electronic locking device 170, and the handle system 100. The electronic locking device 170 is arranged on the door 107 for locking or unlocking it. The handle system 100 can control the electronic locking device 170 and / or the drive device 160 based on the position of the handle body relative to the handle receptacle. Fig. 11 shows a flowchart of the method for controlling the handle system 100. As shown in Fig. 11, the method for controlling the handle system 100 comprises steps 1161, 1162, and 1163. In step 1161, the control device 150 uses the position sensors 425 to detect the relative position of the sensor-detected element 105 relative to the position sensors 425. For example, the control device 150 uses the position sensors 425 to detect whether the position sensors are entering the sensor-detected area S of the sensor-detected element 105, and the position sensors 425 can generate corresponding detection signals. Step 1162 is then executed. In step 1162, the control device 150 determines the position of the handle body relative to the handle receptacle based on the detection signals received from the position sensors 425. Step 1163 is then executed. In step 1163, the control device 150 controls the operation of the drive device 160 or the operation of the electronic locking device 170 based on the position of the handle body relative to the handle receptacle. For example, it controls the drive device 160 to stop the drive of the handle body 110 from retracting, to stop the drive of the handle body 110 from extending, or controls the electronic locking device 170 to unlock. Fig. 12 illustrates step 1162 in Fig. 11. As shown in Fig. 12, step 1162 comprises: if the first position sensor 425a detects the sensor-detected element 105, it is determined that the handle body 110 reaches the first extended position relative to the handle receptacle 101; if the second position sensor 425c detects the sensor-detected element 105, it is determined that the handle body 110 reaches the retracted position relative to the handle receptacle 101; and if neither of the position sensors detects the sensor-detected element 105, it is determined that the handle body 110 reaches the second extended position relative to the handle receptacle 101. Fig. 13 illustrates step 1163 in Fig. 11. As in Fig. 13, step 1163 comprises: when the handle body 110 reaches the first extended position relative to the handle receptacle 101, the control device 150 controls the drive device 160 so that it stops the drive of the handle body 110 from extending; when the handle body 110 reaches the retracted position relative to the handle receptacle 101, the control device 150 controls the drive device 160 so that it stops the drive of the handle body 110 from retracting; and when the handle body 110 reaches the second extended position relative to the handle receptacle 101, the control device 150 controls the electronic locking device 170 so that it unlocks. The handle system of the present disclosure can accurately indicate that the handle body is in the retracted position, the first extended position, or the second extended position relative to the handle receptacle by providing the position sensing device and the sensor-detected element that interact at the handle receptacle and the handle body. Based on the position of the handle body, the control device of the handle system can control the drive device such that the drive device ceases to drive the handle body when the handle body is moved into the retracted position and the first extended position, and the control device can control the unlocking of the electronic locking device when the handle body is moved into the second extended position. The handle system of the present invention does not require any additional components on the drive device, such as an additional counter or the like, to indicate whether the drive device has driven the handle body into position, nor does it require any additional microswitches that require mechanical actuation to indicate the position of the handle body for controlling the unlocking of the electronic locking device. Thus, additional components that communicate with the control device are unnecessary. The position detection device of the present disclosure can be arranged within the handle body, and the sensor-detected element is arranged within the handle receptacle, so that the water resistance and durability are good and higher reliability is given. In some embodiments, the sensor-detected element is a magnet, and the position detection device comprises at least two Hall sensors. Due to the limited internal dimensions of the handle body, the size and detection accuracy of the Hall sensors are better suited for position detection of the flush handle system. Based on the travel path of the handle body, the Hall sensors can also cover the entire travel path of the handle body by adjusting the number of Hall sensors. Furthermore, since the position detection device of the present disclosure is integrated via the printed circuit board, the integration performance is good and a single grounding connection on the circuit board can be shared, even when additional functional modules such as the LED module are included. This also reduces the number of connections, simplifies the wiring and routing of the handle system, makes the cables more organized, and facilitates assembly. Although the present disclosure has been described in conjunction with the examples of the embodiments explained above, various alternatives, modifications, variants, improvements, and / or substantial equivalents, whether known or now or foreseen in the near future, are apparent, at least to persons skilled in the art. The technical effects and problems described in this patent specification are exemplary and not limiting. It should be noted that the embodiments described in this patent specification may have different technical effects and solve different technical problems. Accordingly, the examples of embodiments of the present disclosure, as set forth above, are intended to be illustrative rather than limiting. Various modifications can be made without departing from the basic idea or scope of the invention.Therefore, the present disclosure shall include all known or previously developed alternatives, modifications, variants, improvements and / or substantial equivalents. QUOTES INCLUDED IN THE DESCRIPTION This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature CN 202411906809.0

[0001]

Claims

Handle system for a vehicle door with an electronic locking device (170), wherein the handle system comprises: a handle receptacle (101); a handle body (110) attached to the handle receptacle (101) and movable relative to the handle receptacle (101) between a retracted position, a first extended position, and a second extended position; a drive device (160) configured to drive the handle body (110) to extend from the retracted position to the first extended position and from the first extended position to the retracted position; a position sensing device (120) comprising at least two position sensors arranged on a portion of the handle receptacle (101) and the handle body (110), spaced apart in a direction of movement of the handle body (110); a sensor-detected element (105),which is arranged on the other side from the handle receptacle (101) and the handle body (110) and has a sensor-detected area (S), wherein the sensor-detected element (105) is configured such that when one of the at least two position sensors enters the sensor-detected region (S), the sensor-detected element is detected by the position sensor entering the sensor-detected region; a control device (150) which is communicatively connected to the position detection device (120), the drive device (160) and the electronic locking device (170), wherein the control device (150) is configured such that, depending on whether the at least two position sensors detect the sensor-detected element (105), it determines whether the handle body (110) reaches the retracted position, the first extended position or the second extended position in order to control the drive device (160) accordingly.that it stops the drive of the handle body (110) from retracting when it is determined that the handle body (110) has reached the retracted position, in order to control the drive device (160) so that it stops the drive of the handle body (110) from extending when it is determined that the handle body (110) has reached the first extended position, and to control the electronic locking device (170) so that it unlocks when it is determined that the handle body (110) has reached the second extended position. Grip system according to claim 1, wherein the at least two position sensors comprise a first position sensor (425a) and a second position sensor (425c), wherein the second position sensor (425c) is arranged furthest out and the first position sensor furthest in in the direction of movement of the grip body (110); wherein, when the grip body (110) reaches the retracted position, the second position sensor (425c) detects the sensor-detected element (105); when the grip body (110) reaches the first extended position, the first position sensors (425a) detect the sensor-detected element (105); and when the grip body (110) reaches the second extended position, neither of the at least two position sensors detects the sensor-detected element (105). Handle system according to claim 2, wherein the control device (150) determines, based on a detection signal from the second position sensor (425c), that the handle body (110) has reached the retracted position, based on a detection signal from the first position sensor (425a), that the handle body (110) has reached the first extended position, and based on detection signals from both the first position sensor (425a) and the second position sensor (425c), that the handle body (110) has reached the second extended position. A handle system according to claim 2 or 3, wherein the at least two position sensors further comprise a third position sensor (425b), the third position sensor (425b) being arranged between the first position sensor (425a) and the second position sensor (425c); and wherein the control device (150) determines, based on a detection signal from the second position sensor (425c), that the handle body (110) has reached the retracted position, based on a detection signal from the first position sensor (425a), that the handle body (110) has reached the first extended position, and based on detection signals from both the first position sensor (425a) and the second position sensor (425c) as well as the third position sensor (425b), that the handle body (110) has reached the second extended position. Handle system according to one of claims 1 to 4, wherein the position sensors are Hall sensors; and wherein the sensor-detected element (105) is a magnet, and the sensor-detected area (S) is a magnetic field of the magnet, wherein the Hall sensors are preferably Hall sensors of the switch type, and / or wherein the position detection device (120) further comprises a printed circuit board (442) in which at least two position sensors are integrated, and the printed circuit board (442) has a power supply connection for connecting the at least two position sensors to a power supply, and signal output connections for connecting the at least two position sensors to the control device (150). Grip system according to claim 5, wherein the position detection device (120) further comprises a housing (421) wherein the circuit board (442) is received and held in the housing (421), and / or further comprises a light module (438) wherein the light module (438) is integrated on the circuit board (442) and is switched on or off based on the position of the grip body (110). A handle system according to any one of claims 1 to 6, wherein the sensor-detected element (105) is arranged on an inner wall of the handle receptacle (101) and the at least two position sensors are enclosed in the handle body (110), wherein preferably the handle body (110) has a gripping section (116) and a first retaining web (111) and a second retaining web (112) on two opposite sides of the gripping section (116); wherein, during the movement from the retracted position to the second extended position, a travel distance of the second retaining web (112) is greater than a travel distance of the first retaining web (111); and wherein the position detection device (120) is enclosed in the second retaining web (112) of the handle body (110). Vehicle comprising: a door (107); an electronic locking device (170) arranged on the door (107) and configured to lock or unlock the door (107); and a handle arrangement according to any one of claims 1-7. A method for controlling a handle system, wherein the handle system comprises a sensor-detected element (105), at least two position sensors, a handle body (110), a handle receptacle (101), and a drive device (160), wherein the sensor-detected element (105) is arranged on the handle body (110) or the handle receptacle (101), and the at least two position sensors are arranged on the other side of the handle body (110) and the handle receptacle (101), wherein the method comprises: detecting a relative position of the sensor-detected element (105) relative to the at least two position sensors by means of the at least two position sensors; determining a position of the handle body (110) relative to the handle receptacle (101) depending on detection signals received from the at least two position sensors;and controlling the drive device (160) to stop the drive of the handle body (110) from retracting, to stop the drive of the handle body (110) from extending, or controlling an electronic locking device (170) so that it unlocks depending on the position of the handle body (110) relative to the handle receptacle (101). The method of claim 9, wherein the step of determining the position of the handle body (110) relative to the handle receptacle (101) based on the detection signals received from the at least two position sensors comprises the following: when a first position sensor (425a), which is located furthest inwards in a direction of movement of the handle body (110) among the at least two position sensors, detects the sensor-detected element (105), determining that the handle body (110) has reached a first extended position; when a second position sensor (425c), which is located furthest outwards in the direction of movement of the handle body (110) between the at least two position sensors, detects the sensor-detected element (105), determining that the handle body (110) has reached a retracted position;and if neither of the at least two position sensors detects the sensor-detected element (105), determine that the handle body (110) reaches a second extended position, wherein preferably the step of controlling the drive device (160) to stop the drive of the handle body (110) from retracting, to stop the drive of the handle body (110) from extending, or to control the electronic locking device (170) to unlock based on the position of the handle body (110) relative to the handle receptacle (101) comprises: when the handle body (110) reaches the first extended position, stopping the drive of the handle body (110) from extending; when the handle body (110) reaches the retracted position, stopping the drive of the handle body (110) from retracting; and when the handle body (110) reaches the second extended position, controlling the electronic locking device (170) to unlock.

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