Pedal assembly for a motor vehicle
阅读说明:本技术 用于机动车辆的踏板组件 (Pedal assembly for a motor vehicle ) 是由 麦迪·艾米伦 于 2019-07-08 设计创作,主要内容包括:一种用于机动车辆的踏板组件(1),包括踏板臂(2),踏板臂(2)当处于操作位置(OP)时,围绕在其第一端部(2a)处的旋转轴(3)可枢转地布置。支架(10、10’)围绕旋转轴(3)可旋转地布置,并且通过踏板连接轴(5)连接到踏板臂(2)的第一端部(2a)。锁定机构(20)当处于锁定状态时,将支架(10、10’)相对于踏板臂(2)锁定到第一支架位置(B1、B1’),使得支架(10、10’)与踏板臂(2)一起旋转,并且踏板臂(2)保持在操作位置(OP)。当锁定机构(20)从锁定状态改变到解锁状态时,将支架(10、10’)从踏板臂(2)解锁,使得在重力影响下,踏板臂(2)从旋转轴(3)释放,并且从操作位置(OP)移位到安全位置(SP),踏板臂(2)的第一端部(2a)经由踏板连接轴和支架(10、10’)连接到旋转轴(3),并且支架(10、10’)相对于踏板臂(2)旋转到第二支架位置(B2、B2’)。(A pedal assembly (1) for a motor vehicle comprises a pedal arm (2), the pedal arm (2) being pivotably arranged about a rotational axis (3) at a first end (2a) thereof when in an Operating Position (OP). The bracket (10, 10') is rotatably arranged around a rotation shaft (3) and is connected to a first end (2a) of the pedal arm (2) by a pedal connecting shaft (5). The lock mechanism (20) locks the bracket (10, 10 ') to a first bracket position (B1, B1 ') with respect to the pedal arm (2) when in a locked state, so that the bracket (10, 10 ') rotates together with the pedal arm (2) and the pedal arm (2) is held at an Operating Position (OP). When the locking mechanism (20) is changed from the locked state to the unlocked state, the bracket (10, 10 ') is unlocked from the pedal arm (2) such that under the influence of gravity the pedal arm (2) is released from the rotational shaft (3) and displaced from the Operating Position (OP) to the Safety Position (SP), the first end (2a) of the pedal arm (2) is connected to the rotational shaft (3) via the pedal connecting shaft and the bracket (10, 10'), and the bracket (10, 10 ') is rotated relative to the pedal arm (2) to the second bracket position (B2, B2').)
1. A pedal assembly (1) for a motor vehicle, comprising:
-an elongated pedal arm (2), the elongated pedal arm (2) having a first end (2a) and a second end (2b), the second end (2b) comprising a pedal (4), wherein the pedal arm (2) is pivotably arranged about a rotational axis (3) at its first end (2a) when the pedal arm (2) is in an Operating Position (OP), and
-a bracket (10, 10 '), said bracket (10, 10') being rotatably arranged around said rotation axis (3) and being connected to said first end (2a) of said pedal arm (2) by a pedal connecting shaft (5),
it is characterized in that
A locking mechanism (20), the locking mechanism (20) being configured to,
when in the locked state of the lock, the lock is opened,
locking the bracket (10, 10 ') in a first bracket position (B1, B1 ') relative to the pedal arm (2) such that when the pedal arm (2) is pivoted about the rotational axis (3), the bracket (10, 10 ') rotates with the pedal arm (2) and the pedal arm (2) is held in the Operating Position (OP) and
when changing from the locked state to the unlocked state,
unlocking the bracket (10, 10 ') from the pedal arm (2) such that under the influence of gravity the pedal arm (2) is released from the rotational shaft (3) and displaced from the Operating Position (OP) to a Safety Position (SP), wherein the first end (2a) of the pedal arm (2) is connected to the rotational shaft (3) via the pedal connecting shaft (5) and the bracket (10, 10 '), and when the pedal arm (2) is displaced from the Operating Position (OP) to the Safety Position (SP), the bracket (10, 10 ') is rotated relative to the pedal arm (2) about the rotational shaft (3) and the pedal connecting shaft (5) in a direction substantially opposite to the direction of displacement of the second end (2B) of the pedal arm (2) to a second bracket position (B2, B) relative to the pedal arm (2), B2').
2. Pedal assembly (1) according to claim 1, wherein the bracket (10, 10 ') comprises a first bracket part (10a, 10b) and a second bracket part (10 a', 10b '), the first bracket part (10a, 10b) and the second bracket part (10 a', 10b ') being arranged on opposite sides of the first end (2a) of the pedal arm (2), the normal of one side of the pedal arm (2) being substantially parallel to the rotation axis (3), and the first bracket part (10a, 10b) and the second bracket part (10 a', 10b ') being connected to each other by a bracket connection member (30, 30').
3. The pedal assembly (1) according to claim 2, wherein the bracket connection member (30, 30') is arranged on a rear side of the first end (2a) of the pedal arm (2), a normal of the rear side of the pedal arm (2) being substantially perpendicular to the rotation axis (3) and pointing in the displacement direction of the second end (2b) of the pedal arm (2) when the pedal arm (2) is displaced from the Operating Position (OP) to the Safety Position (SP).
4. The pedal assembly (1) according to claim 2 or 3, wherein the bracket connection member (30, 30 ') is an axle connecting the first and second bracket parts (10a, 10b, 10a ', 10b ').
5. Pedal assembly (1) according to any of claims 2-4, wherein said first (10a, 10b) and second (10a ', 10 b') bracket parts are provided with respective through holes (11a, 11 b; 11a ', 11 b') to receive said rotation shaft (3), and said first (10a, 10b) and second (10a ', 10 b') bracket parts are connected to said respective sides of said pedal arm (2) by said pedal connecting shaft (5).
6. The pedal assembly (1) according to claim 5, wherein the pedal connecting shaft (5) constitutes a protrusion on each side of the pedal arm (2), to which the bracket parts (10a, 10 b; 10a ', 10 b') are connected.
7. Pedal assembly (1) according to claim 5, wherein said pedal connection shaft (5) constitutes a through shaft passing through said pedal arm (2) and said bracket portions (10a, 10 b; 10a ', 10 b') are connected to respective ends of said through shaft.
8. The pedal assembly (1) according to any one of the preceding claims, wherein said locking mechanism (20) comprises an actuator (21), said actuator (21) being selected from the group of actuators comprising: a pyrotechnic actuator, a mechanical actuator, an electrical actuator, or any combination thereof, the locking mechanism (20) changing from the locked state to the unlocked state upon activation of the actuator (21).
9. The pedal assembly (1) of claim 8 wherein the actuator (21) is connected to a crash sensor (40) or any other sensor in the vehicle in response to a crash event.
10. Pedal assembly (1) according to any one of the preceding claims, wherein said locking mechanism (20) comprises a first locking member (22) arranged on a front side of said first end (2a) of said pedal arm (2), a normal of said front side of said pedal arm (2) being substantially perpendicular to said rotation axis (3) and pointing in a direction substantially opposite to said direction of displacement of said second end (2b) of said pedal arm (2) when said pedal arm (2) is displaced from said Operating Position (OP) to said Safety Position (SP), and a second locking member (23) arranged to fixedly connect said bracket (10, 10') and said first locking member (22) together when said locking mechanism (20) is in said locked state.
11. Pedal assembly (1) according to claim 10, when depending on any one of claims 9 and 10, wherein said actuator (21) is connected to said second locking member (23) of said locking mechanism (20).
12. Pedal assembly (1) according to claim 10 or 11, wherein said first locking member (22) and said bracket part (10a, 10 b; 10a ', 10 b') of said locking mechanism (20) are provided with a recess, groove, slit or slot to receive said second locking member (23) of said locking mechanism (20) when in said locked state.
13. The pedal assembly (1) according to any one of claims 5 to 12, wherein the through hole (11a, 11 b; 11a ', 11 b') of the respective bracket portion (10a, 10 b; 10a ', 10 b') has an area of about the same size as the cross-sectional area of the rotation shaft (3).
14. Pedal assembly (1) according to any of claims 5 to 12, wherein said through hole (11a, 11 b; 11a ', 11 b') of said respective bracket part (10a, 10 b; 10a ', 10 b') has an area larger than the cross-sectional area of said rotation axis (3), and wherein said through hole (11a, 11 b; 11a ', 11 b') is provided with a restriction to hinder said bracket part (10a, 10 b; 10a ', 10 b') from moving around said rotation axis instead of rotating.
Technical Field
The present disclosure relates to a pedal assembly for a motor vehicle designed to allow a pedal arm of the pedal assembly to be displaced from an operating position to a safety position in the event of a collision.
Background
Different kinds of safety arrangements for motor vehicle pedals are known, wherein in the event of a collision the pedal is allowed to move forward relative to the driving direction of the vehicle, thereby minimizing injury to the driver's foot if the pedal structure moves towards the driver upon collision.
One such pedal safety arrangement is described in EP 2578454B 1. The safety arrangement includes a pedal structure and a pedal axle for transmitting movement of the pedal structure to a vehicle system. The pedal structure includes a pedal arm and a bracket fixedly connected to the pedal arm. During normal operation of the pedal structure, the pedal structure is in a first position relative to the pedal axle. In the event of a collision, the pedal structure may be displaced relative to the pedal axle from a first position to a second position, and in the second position the pedal structure is at least partially operatively decoupled from the pedal axle. Braking at reduced travel is still possible when the pedal structure is in the second position.
Another pedal safety arrangement for a motor vehicle is shown in EP 1709505B 1. The safety arrangement includes a pedal support having a bracket secured in a bulkhead provided in the vehicle between a passenger compartment and an engine compartment of the vehicle. The first axle is secured in a bracket, which is horizontal and transversely oriented with respect to the direction of travel of the vehicle, and about which the pedal arm provided with the pedal plate is pivotally arranged. An operating device is pivotally arranged in the pedal arm at a distance from the first axis for operating or controlling a vehicle function, e.g. braking. The first shaft is locked by means of a locking device when in a normal position in the holder. In the event of a collision, the locking means is openable for permitting displacement of the first shaft in the direction of travel of the vehicle to a safety position in which the foot pedal is displaced away from the legs/feet of the driver of the vehicle, but in which the function of the operating means is at least partially retained.
Both of the above described pedal safety arrangements are rather space consuming, why alternative pedal safety arrangements are desired that are more flexible and have less space requirements.
Disclosure of Invention
It is an object of embodiments of the present invention to provide a pedal assembly which is more flexible than known solutions. It is a further object of embodiments of the present invention to provide a pedal assembly which is less space consuming than known solutions. The invention is defined by the appended independent claims. Embodiments are set forth in the appended dependent claims and the figures.
According to a first aspect, there is provided a pedal assembly for a motor vehicle, comprising an elongate pedal arm having a first end and a second end, the second end comprising a pedal, wherein the pedal arm is pivotably arranged about a rotational axis at its first end when the pedal arm is in an operative position; and a bracket rotatably disposed around the rotation shaft and connected to the first end of the pedal arm by a pedal connecting shaft. The pedal assembly also includes a locking mechanism configured to lock the bracket in a first bracket position relative to the pedal arm when in a locked state such that the bracket rotates with the pedal arm and the pedal arm remains in an operating position as the pedal arm pivots about the rotational axis. When the locking mechanism is changed from the locked state to the unlocked state, the bracket is unlocked from the pedal arm, such that under the influence of gravity the pedal arm is released from the rotational shaft and displaced from the operating position to the safety position, wherein the first end of the pedal arm is connected to the rotational shaft via the pedal connection shaft and the bracket, and when the pedal arm is displaced from the operating position to the safety position, the bracket is rotated relative to the pedal arm about the rotational shaft and the pedal connection shaft to a second bracket position relative to the pedal arm in a direction substantially opposite to the displacement direction of the second end of the pedal arm.
The pedal assembly may be, for example, a brake pedal assembly or a clutch pedal assembly. The rotation shaft about which the pedal arm in the operating position is pivotable and about which the bracket is rotatable may be a rotating axle connected to the vehicle chassis.
The retaining of the second end of the pedal arm in the operating position by the locking mechanism when the locking mechanism is in the locked state means here that the pedal arm is positioned for normal use (e.g. by pressing the pedal brake or clutch with the driver's foot). In the locked state, the bracket is fixed relative to the pedal arm and does not rotate relative to the pedal arm, but rather rotates with the pivoting pedal arm.
The safe position is a position where the second end of the pedal arm and the pedal have been displaced away from the leg/foot of the vehicle driver, as compared to when in the operating position (e.g., in the event of a collision or if a collision is about to occur). Thus, if the pedal assembly moves toward the driver at the time of a collision, injury to the driver's foot can be avoided or reduced.
The components of the pedal assembly that are primarily involved when the pedal arm is moved from the operating position to the safety position in the event of, for example, a collision, are all arranged at the first end of the pedal arm (i.e., the bracket and the locking mechanism). Thereby, this part of the pedal assembly can be made compact without requiring large space in the vehicle. Thereby, space is made available along the pedal arm for connection to an operating device, for example, for activating or controlling vehicle functions, such as an interrupt function, a clutch function, etc. The present pedal assembly is flexible by allowing different geometries of pedal arm-operator connections. In addition, by arranging the bracket and the locking mechanism at the first end of the pedal arm as described in
When the locking mechanism is changed from the locked state to the unlocked state, the bracket is unlocked from the pedal arm, so that under the influence of gravity the pedal arm is released from the rotational shaft and displaced from the operating position to the safety position, wherein the first end of the pedal arm is connected to the rotational shaft via the pedal connection shaft and the bracket. When the locking mechanism is changed from the locked state to the unlocked state, the first end of the pedal arm is released from the rotational shaft and the pedal arm is displaced from the operating position to the safety position such that the pedal arm is no longer directly pivotable about the rotational shaft. When the lock mechanism is changed from the locked state to the unlocked state, the bracket is rotated relative to the pedal arm about the rotation shaft and the pedal connecting shaft in a direction substantially opposite to a displacement direction of the second end portion of the pedal arm to a second bracket position relative to the pedal arm when the pedal arm is displaced from the operating position to the safety position. In the safety position, the pedal arm is connected with the rotation shaft via the pedal connecting shaft and the bracket. In the safety position, the bracket is in a second bracket position and is lockable with respect to the pedal arm for rotation with the pedal arm when the pedal is depressed by the driver's foot. Since the pedal arm in the safety position is still connected with the rotation shaft via the pedal connection shaft and the bracket, the pedal arm does not loosen in the vehicle in the event of a collision. In addition, by pressing the pedal at the second end of the pedal arm, some force may still be exerted on the pedal arm in the safe position. There is at least some displacement of the second end of the pedal arm in the safety position, i.e. there is a reduced travel compared to when the pedal arm is in the operating position.
Under normal driving conditions, the locking mechanism is in a locked state and the stand is in the first stand position. In the event of a crash, the locking mechanism changes from the locked state to the unlocked state and the pedal arm is displaced from the operating position to the safety position. The locking of the bracket in the first bracket position relative to the pedal arm by means of the locking mechanism may be purely mechanical.
Likewise, the change of the locking mechanism from the locked state to the unlocked state may be initiated by a collision (e.g., from an impact of the driver's foot on a pedal and/or from deceleration of the vehicle, or when the safety arrangement is pushed backwards in the vehicle (i.e., towards the driver during the collision).
Alternatively or additionally, collision avoidance systems for vehicles that use collision sensors (e.g., cameras, infrared cameras, radar, lidar, etc.) may be used to detect that a collision may occur and prepare the vehicle for the collision. In order to minimize injury to persons in the vehicle and to the vehicle itself, based on such sensor signals, a displacement of the pedal assembly from the operating position to the safety position may be carried out. In other words, detection of a collision detected by the collision sensor may initiate a change of the locking mechanism from the locked state to the unlocked state, which displaces the pedal arm from the operating position to the safety position.
The bracket may include a first bracket part and a second bracket part, the first bracket part and the second bracket part being disposed on opposite sides of the first end of the pedal arm, a normal of one side of the pedal arm being substantially parallel to the rotation axis, and the first bracket part and the second bracket part being connected to each other by a bracket connection member. The first and second bracket parts and the bracket connection member may be one piece. Alternatively, the first bracket part and the second bracket part may be separate parts connected to each other by a bracket connection member.
The bracket connection member may be arranged on a rear side of the first end of the pedal arm, a normal of the rear side of the pedal arm being substantially perpendicular to the rotation axis and pointing in a displacement direction of the second end of the pedal arm when the pedal arm is displaced from the operating position to the safety position. The bracket connecting member may abut against the rear side of the pedal arm when in the second bracket position. When the pedal is pressed at the safety position, the displacement of the pedal arm (i.e., the remaining pivot function) may be controlled by a bracket connection member disposed on the rear side of the first end portion of the pedal arm.
The bracket connection member may be a shaft connecting the first bracket part and the second bracket part. The shaft may have a circular, square, rectangular or any other suitable cross-section.
The first bracket part and the second bracket part may be provided with respective through holes to receive the rotation shaft, and the first bracket part and the second bracket part may be connected to respective sides of the pedal arm by a pedal connection shaft.
The pedal connecting shaft may constitute a protrusion on each side of the pedal arm, and the bracket portion may be connected to the protrusion.
The pedal connecting shaft may constitute a through shaft passing through the pedal arm, and the bracket portions may be connected to respective ends of the through shaft.
The locking mechanism may comprise an actuator selected from the group of actuators comprising: a pyrotechnic actuator, a mechanical actuator, an electrical actuator, or any combination thereof, the locking mechanism changing from a locked state to an unlocked state upon activation of the actuator.
The actuator may be connected to a crash sensor or any other sensor in the vehicle in response to a crash event.
The locking mechanism may comprise a first locking member arranged on a front side of the first end of the pedal arm, a normal to the front side of the pedal arm being substantially perpendicular to the rotation axis and pointing in a direction substantially opposite to the direction of displacement of the second end of the pedal arm when the pedal arm is displaced from the operating position to the safety position, and a second locking member may be arranged to fixedly connect the bracket and the first locking member together when the locking mechanism is in the unlocked state. The second locking member allows the bracket and the first locking member to be separated from each other when the locking mechanism is in the second state. The second locking member may be completely removable or partially removable or may vary in size, shape, etc.
The actuator may be connected to the second locking member of the locking mechanism.
The first locking member and the bracket portion of the locking mechanism may be provided with a pocket, groove, slit or slot to receive the second locking member of the locking mechanism when in the locked state.
The through-hole of the corresponding bracket portion may have an area about the same size as the cross-sectional area of the rotational shaft. The size of the through-hole may be up to about 10% larger than the cross-sectional area of the rotational axis and should not be so small as to impede rotation of the support portion about the rotational axis.
Alternatively, the through-hole of the respective bracket part may have an area larger than the cross-sectional area of the rotation axis, and wherein the through-hole may be provided with a restriction to hinder the bracket part from moving around the rotation axis instead of rotating. The area of the through-hole may be 1.5 times, 2 times, or 3 times larger than the cross-sectional area of the rotation shaft. The restriction may be, for example, a taper, a protrusion, or the like.
Drawings
Fig. 1 shows a pedal assembly for an automotive vehicle, the pedal assembly including a pedal arm, a bracket, and a locking mechanism. The bracket is in a first bracket position, the locking mechanism is in a locked state, and the pedal arm is in an operating position.
Fig. 2 is an enlarged view of the locking mechanism and bracket shown in fig. 1.
FIG. 3 is an enlarged view of a second embodiment of the locking mechanism and bracket.
FIG. 4 illustrates the pedal assembly when the locking mechanism is changed from the locked state to the unlocked state.
Fig. 5 illustrates the pedal assembly with the locking mechanism in the unlocked state, the bracket in the second bracket position, and the pedal arm in the safety position.
Fig. 6 shows the pedal assembly when the pedal arm is in the operating position and the pedal is depressed from the starting position to the bottom position.
Fig. 7 and 8 show the pedal assembly when the pedal arm is in the safety position and the pedal is depressed from the start position to the bottom position. The stent shown in fig. 7 is the same stent as shown in fig. 2, and the stent shown in fig. 8 is a second embodiment of the stent shown in fig. 3.
Detailed Description
In fig. 1 and 4 to 8, a
As seen for example in fig. 1, the
The
The first and second bracket parts may be provided with respective through
The
The through
In fig. 3, a second embodiment of a support 10 'is shown, the support 10' having through
The
When the
In the operating position OP, the
The safety position SP is a position where the
When the
As seen in fig. 2 to 4, the
The
The
The
The operating device may be connected to the
While the above description contains many specifics, these should not be construed as limiting the scope of the concepts described herein, but as merely providing illustrations of some exemplary embodiments of the described concepts. It should be understood that the scope of the presently described concepts fully encompasses other embodiments that may become obvious to those skilled in the art, and that the scope of the presently described concepts is accordingly not limited. Reference to an element in the singular is not intended to mean "one and only one" unless explicitly stated, but rather "one or more. All structural and functional equivalents to the elements of the above-described embodiments that are known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed herein. Moreover, it is not necessary for an apparatus or method to address each and every problem sought to be solved by the presently described concepts as it will be encompassed herein. In the exemplary figures, dashed lines generally indicate that features within the dashed lines are optional.
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