Adjustable suspension device of racing car

Abstract

The utility model discloses an adjustable suspension device of a racing car. The adjustable suspension device comprises a steering mechanism, a damping mechanism and a suspension mechanism, a steering wheel of the steering mechanism is fixedly connected with a steering shaft, the steering shaft is rotationally connected with the frame through a bearing, and a steering angle signal sensor is arranged on the steering shaft, recognizes the steering angle of the steering wheel and converts the steering angle into an electric signal; one end of the damping mechanism is fixedly connected with the frame, and the other end is fixedly connected with a hydraulic telescopic rod in the suspension mechanism; the suspension mechanism comprises a tripod, a supporting plate is welded to the tripod, and the supporting plate is fixed to the other end of the hydraulic telescopic rod and bears force transmitted by the suspension; the hydraulic telescopic rod stretches out and draws back through cooperation of a hydraulic pump and an oil valve controller, and the oil valve controller receives an electric signal of the corner signal sensor and further controls oil supply of the hydraulic pump so as to achieve ascending and descending of the inner side car body and the outer side car body of the racing car; the heights of the suspensions on the inner side and the outer side of the racing car are correspondingly increased and decreased, the time consumed by the racing car on a curve and the time consumed by speed increasing after the racing car goes out of the curve are shortened, and then the racing result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of formula racing cars, in particular to an adjustable suspension device for racing cars. Background Art

[0002] The China Formula One car race is a high-speed racing sport, and the car needs to have excellent stability and handling when turning. In order to maintain good vehicle stability and reduce the risk of loss of control when turning at high speed, the suspension system of the car plays a vital role. Existing Formula One car suspension systems usually use independent suspensions with fixed suspension stiffness. These suspension systems can provide vertical support while also playing a certain role in buffering and shock absorption. However, due to the large lateral force generated by the car when turning at high speed, the lateral stability that the traditional suspension system can provide is relatively limited, which to a certain extent limits the performance of the car and reduces the competitiveness of the car.

[0003] When a racing car turns, the vehicle will be affected by the centripetal force, which will cause the body to tilt outward. Raising the outer body can offset this tilt by increasing the vertical distance between the body and the ground, thereby providing better handling performance and stability. This tilt can also help the vehicle to better distribute weight, provide more adhesion, and reduce the possibility of vehicle sliding, so that the racing car can pass the curve at the highest possible speed, which can save the time of the racing car accelerating in the curve and after the curve, thereby improving the racing car's performance. Therefore, the present application proposes a suspension device with adjustable body height for racing cars. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and provide an adjustable suspension device for a racing car. By setting an adjustable suspension device between the car body and the wheels, the height of the car body on both sides of the racing car can be changed according to the extension and retraction of the hydraulic telescopic rod, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A racing car adjustable suspension device comprises a frame and wheels, a steering mechanism, a shock absorbing mechanism, and a suspension mechanism; the steering mechanism comprises a steering wheel, a steering shaft, and a rotation angle signal sensor, the steering wheel and the steering shaft are fixedly connected, the steering shaft is rotationally connected to the frame through a bearing, and the rotation angle signal sensor is arranged on the steering shaft to identify the rotation angle of the steering wheel and convert it into an electrical signal;

[0007] One end of the shock absorbing mechanism is fixedly connected to the vehicle frame, and the other end is fixedly connected to the hydraulic telescopic rod in the suspension mechanism; the suspension mechanism also includes a tripod, and the tripod includes a first tripod and a second tripod, and the second tripod is welded with a support plate, and the support plate is fixed to the other end of the hydraulic telescopic rod to withstand the force transmitted by the suspension; the upward and downward extension of the hydraulic telescopic rod is achieved by the cooperation of a hydraulic pump and an oil valve controller, and the oil valve controller receives the electrical signal of the angle signal sensor, and then controls the oil supply of the hydraulic pump to achieve the rise and fall of the inner and outer body of the racing car.

[0008] Furthermore, the hydraulic telescopic rod is composed of a piston rod, a piston and a piston cylinder. The piston divides the piston cylinder into an upper oil chamber and a lower oil chamber. A first oil port is provided at the top of the upper oil chamber, and a second oil port is provided at the bottom of the lower oil chamber. The lifting and lowering of the piston is controlled by controlling the amount of oil in the upper oil chamber and the lower oil chamber.

[0009] Furthermore, one end of the first tripod connected to the vehicle frame is pin-connected, the first tripod is connected to the front wheel hub by a pin connection, and is fixedly connected to the rear wheel hub.

[0010] As a preferred solution, the shock absorbing mechanism is composed of a spring and a shock absorber, the spring and the shock absorber are coaxially arranged, and the spring wraps around the outer peripheral surface of the shock absorber.

[0011] Furthermore, when the racing car turns left, the steering wheel drives the steering shaft to rotate counterclockwise, the steering signal sensor recognizes and converts it into an electrical signal and transmits it to the oil valve controller, and the oil valve controller then controls the front and rear hydraulic telescopic rods on the left side of the racing car, the hydraulic oil flows into the upper oil chamber from the first oil port, the hydraulic oil in the lower oil chamber flows back to the oil storage tank from the second oil port, the piston moves downward, and the left side of the racing car body is lowered; at the same time, the oil valve controller controls the right side of the racing car body to rise.

[0012] Furthermore, when the racing car turns right, the steering wheel drives the steering shaft to rotate clockwise, the turn signal sensor recognizes and converts it into an electrical signal and transmits it to the oil valve controller, and the oil valve controller then controls the front and rear hydraulic telescopic rods on the right side of the racing car, the hydraulic oil flows into the lower oil chamber from the second oil port, the hydraulic oil in the upper oil chamber flows back to the oil storage tank from the first oil port, the piston moves downward, and the right side of the racing car body is lowered; at the same time, the oil valve controller controls the left side of the racing car body to rise.

[0013] Working principle:

[0014] When the car enters a curve, the steering wheel will turn a certain angle, and the steering shaft fixed to it will also turn a certain angle. The angle signal sensor will generate a corresponding electrical signal and transmit it to the oil valve controller. The oil valve controller can determine the steering situation of the car through the electrical signal transmitted by the angle signal sensor, and then control the corresponding hydraulic telescopic rod to rise and fall.

[0015] When the car turns left, the steering wheel turns to the left at a certain angle, and the steering shaft will also turn to a certain angle. At this time, the angle signal sensor will generate a corresponding electrical signal and transmit it to the oil valve controller. At this time, the oil valve controller receives the electrical signal of turning left. At this time, the oil valve controller controls the car to lower the left side of the car body and raise the right side. The oil valve controller controls the two hydraulic telescopic rods on the left side of the car: the hydraulic oil flows into the upper oil chamber through the first oil port, and the hydraulic oil in the lower oil chamber flows back to the oil storage tank through the second oil port. The piston moves downward, and the left side of the car body is lowered. At the same time, the oil valve controller controls the two hydraulic telescopic rods on the right side. The hydraulic oil flows into the lower oil chamber through the second oil port, and the hydraulic oil in the upper oil chamber flows back to the oil storage tank through the first oil port. The piston moves upward, and the right side of the car body is raised. When the steering wheel is returned to the center, the electrical signal disappears, and the hydraulic telescopic rods on both sides of the car return to their initial positions.

[0016] Similarly, when the car turns right, the height of the right side of the car needs to be lowered and the height of the left side of the car needs to be raised. That is, the oil valve controller receives the right turn electrical signal from the angle signal sensor. At this time, the oil valve controller controls the two hydraulic telescopic rods on the right side of the car, and the hydraulic oil flows into the upper oil chamber through the first oil port, while the hydraulic oil in the lower oil chamber flows back to the oil storage tank through the second oil port. The piston moves downward, and the right side of the car body is lowered. At the same time, the oil valve controller controls the two hydraulic telescopic rods on the left side, and the hydraulic oil flows into the lower oil chamber through the second oil port, while the hydraulic oil in the upper oil chamber flows back to the oil storage tank through the first oil port. The piston moves upward, and the left side of the car body is raised. When the steering wheel is returned to the center, the electrical signal disappears, and the hydraulic telescopic rods on both sides of the car return to their initial positions. Among them, when the steering wheel turns within 5 degrees to the left or right, the lifting function of the hydraulic telescopic rod is not triggered.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] Compared with the existing formula racing car suspension system, the utility model adjusts the height of the body of the racing car on both sides when the racing car is turning. By setting a steering mechanism, a shock absorbing mechanism, and an adjustable suspension device between the body and the wheels, the steering wheel and the steering shaft are fixedly connected, the steering shaft is rotatably connected to the frame through a bearing, the turning angle signal sensor is arranged on the steering shaft, identifies the turning angle of the steering wheel and converts it into an electrical signal; and the up and down extension of the hydraulic telescopic rod is realized by the cooperation of the hydraulic pump and the oil valve controller, the oil valve controller receives the electrical signal of the turning angle signal sensor, and then controls the oil supply of the hydraulic pump to achieve the rise and fall of the inner and outer body of the racing car; when the racing car drives to a curve, the device can judge the left and right turn of the racing car according to the electrical signal transmitted by the steering wheel angle signal sensor of the racing car, and then correspondingly raise and lower the inner and outer suspension heights, change the inner and outer body to improve the grip of the racing car when turning, so that the racing car can pass the curve quickly, reduce the time taken by the racing car in the curve and the time taken to accelerate after exiting the curve, and then improve the competition results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a partial enlarged view of the steering mechanism of the utility model;

[0021] Figure 3 It is a partial enlarged view of the suspension mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the hydraulic telescopic rod of the utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the first tripod and the vehicle frame of the utility model;

[0024] Figure 6 It is a schematic diagram of the connection between the first tripod and the front wheel hub of the utility model;

[0025] Figure 7 It is a schematic diagram of the connection between the first tripod and the rear wheel hub of the utility model;

[0026] In the figure: 1. steering mechanism; 2. frame; 3. wheel; 4. tripod; 5. hydraulic pump; 6. oil valve controller; 7. shock absorbing mechanism; 8. hydraulic telescopic rod; 101. steering wheel; 102. steering angle signal sensor; 103. bearing; 104. steering shaft; 201. pin; 301. hub motor; 401. first tripod; 402. second tripod; 403. support plate; 701. spring; 702. shock absorber; 801. piston rod; 802. piston; 803. piston cylinder; 804. upper oil chamber; 805. lower oil chamber; 806. first oil port; 807. second oil port. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0028] See also Figure 1-7 , this embodiment provides a technical solution:

[0029] A racing car adjustable suspension device comprises a frame 2 and wheels 3, and also comprises a steering mechanism 1, a shock absorbing mechanism 7, and a suspension mechanism; the steering mechanism 1 comprises a steering wheel 101, a steering shaft 104, and a rotation angle signal sensor 102, the steering wheel 101 and the steering shaft 104 are fixedly connected, the steering shaft 104 is rotationally connected to the frame 2 through a bearing 103, the rotation angle signal sensor 102 is arranged on the steering shaft 104, identifies the rotation angle of the steering wheel 101 and converts it into an electrical signal; one end of the shock absorbing mechanism 7 is fixedly connected to the frame 2, and the other end is connected to the suspension mechanism The hydraulic telescopic rod 8 in the suspension is fixedly connected; the suspension mechanism also includes a tripod 4, the tripod 4 includes a first tripod 401 and a second tripod 402, the second tripod 402 is welded with a support plate 403, the support plate 403 is fixed to the other end of the hydraulic telescopic rod 8, and bears the force transmitted by the suspension; the up and down extension of the hydraulic telescopic rod 8 is realized by the cooperation of the hydraulic pump 5 and the oil valve controller 6, the oil valve controller 6 receives the electrical signal of the angle signal sensor 102, and then controls the oil supply of the hydraulic pump 5 to achieve the rise and fall of the inner and outer body of the racing car.

[0030] Compared with the existing formula racing car suspension system, the utility model adjusts the height of the vehicle body on both sides when the racing car is turning, by setting a steering mechanism 1, a shock absorbing mechanism 7, and an adjustable suspension device between the vehicle body and the wheel 3, wherein the steering wheel 101 and the steering shaft 104 are fixedly connected, the steering shaft 104 is rotatably connected to the frame 2 through a bearing 103, the turning angle signal sensor 102 is arranged on the steering shaft 104, identifies the turning angle of the steering wheel 101 and converts it into an electrical signal; and the upward and downward extension of the hydraulic telescopic rod 8 is coordinated by the hydraulic pump 5 and the oil valve controller 6 The oil valve controller 6 receives the electrical signal from the angle signal sensor 102, and then controls the oil supply of the hydraulic pump 5 to achieve the rise and fall of the inner and outer body of the racing car; when the racing car drives to a curve, the device can judge the left and right turn of the racing car according to the electrical signal transmitted from the angle signal sensor 102 of the racing car steering wheel 101, and then raise and lower the inner and outer suspension heights accordingly, change the inner and outer body to improve the grip of the racing car when turning, so that the racing car can pass the curve quickly, reduce the time taken by the racing car in the curve and the time taken to accelerate after exiting the curve, and then improve the racing results.

[0031] Among them, the present embodiment has four suspension mechanisms, which are respectively installed on the four wheels 3 of the racing car. The racing car type applicable to the present embodiment is a rear-wheel independent drive electric racing car or a four-wheel independent drive electric racing car. This type of racing car adopts the arrangement of the wheel hub motor 301, which is the current mainstream type of electric racing car. Its arrangement is as follows Figure 3 The hub motor 301 is shown; secondly, the rotation angle signal sensor 102 of this embodiment is an existing conventional device, which is mainly implemented in two ways: photoelectric encoder and Hall effect.

[0032] In this embodiment, Figure 4 As shown, the structure of the hydraulic telescopic rod 8 is as follows: the hydraulic telescopic rod 8 is composed of a piston rod 801, a piston 802 and a piston cylinder 803. The piston 802 divides the piston cylinder 803 into an upper oil chamber 804 and a lower oil chamber 805. The top of the upper oil chamber 804 is provided with a first oil port 806, and the bottom of the lower oil chamber 805 is provided with a second oil port 807. The lifting and lowering of the piston 802 is controlled by controlling the oil volume in the upper oil chamber 804 and the lower oil chamber 805. 6 and the second oil port 807 are connected to the oil storage tank through an oil pipe. When the hydraulic telescopic rod 8 is extended, oil enters the lower oil chamber 805 and oil exits the upper oil chamber 804. As the amount of oil in the lower oil chamber 805 gradually increases, the piston 802 gradually moves upward, and the hydraulic telescopic rod 8 is extended; when the hydraulic telescopic rod 8 is shortened, oil enters the upper oil chamber 804 and oil exits the lower oil chamber 805. As the amount of oil in the upper oil chamber 804 gradually increases, the piston 802 gradually moves downward, and the hydraulic telescopic rod 8 is shortened.

[0033] To further ensure the steering and structural stability of the front wheels of the car, Figure 5-7 As shown, one end of the first tripod 401 connected to the vehicle frame 2 is pin-connected, the first tripod 401 is connected to the front wheel hub by a pin connection, and is fixedly connected to the rear wheel hub.

[0034] To further improve driving comfort, Figure 3 As shown, the shock absorbing mechanism 7 is composed of a spring 701 and a shock absorber 702. The spring 701 and the shock absorber 702 are coaxially arranged, and the spring 701 wraps the outer peripheral surface of the shock absorber 702. The combination of the shock absorber 702 and the spring 701 can absorb the impact force transmitted from the wheel 3 during racing. The shock absorbing mechanism 7 of this embodiment includes but is not limited to the above structure, and other structures are also acceptable.

[0035] There are two implementation modes in this embodiment, namely, the racing car turning left and the racing car turning right. The above two situations are further described below:

[0036] When the racing car of the present embodiment turns left, the height of the left side of the racing car is lower than that of the right side, so the two hydraulic telescopic rods 8 of the left side of the racing car move downward, and the two hydraulic rods of the right side of the racing car move upward. Specifically, when the racing car turns left, the steering wheel 101 drives the steering shaft 104 to rotate counterclockwise, and the steering signal sensor recognizes and converts it into an electrical signal and transmits it to the oil valve controller 6. The oil valve controller 6 then controls the front and rear hydraulic telescopic rods 8 on the left side of the racing car, and the hydraulic oil flows from the first oil port 806 into the upper oil chamber 804, and the hydraulic oil in the lower oil chamber 805 flows back to the oil storage tank from the second oil port 807, and the piston 802 moves downward, and the left side of the racing car is lowered; at the same time, the oil valve controller 6 controls the right side of the racing car to rise.

[0037] When the racing car of the present embodiment turns right, the height of the left side of the racing car is higher than that of the right side, so the two hydraulic telescopic rods 8 of the left side of the racing car move upward, and the two hydraulic rods of the right side of the racing car move downward. Specifically, when the racing car turns right, the steering wheel 101 drives the steering shaft 104 to rotate clockwise, and the steering signal sensor recognizes and converts it into an electrical signal and transmits it to the oil valve controller 6. The oil valve controller 6 then controls the front and rear hydraulic telescopic rods 8 on the right side of the racing car, and the hydraulic oil flows from the second oil port 807 into the lower oil chamber 805, and the hydraulic oil in the upper oil chamber 804 flows back to the oil storage tank from the first oil port 806, and the piston 802 moves downward, and the right side of the racing car is lowered; at the same time, the oil valve controller 6 controls the left side of the racing car to rise.

[0038] On the basis of the above technical solution, this embodiment further proposes a method for implementing an adjustable suspension device for a racing car, comprising:

[0039] When the racing car enters a curve, the steering wheel 101 will rotate a certain angle, and the steering shaft 104 fixed thereto will also rotate a certain angle accordingly, and the angle signal sensor 102 will generate a corresponding electrical signal and transmit it to the oil valve controller 6. The oil valve controller 6 can determine the steering situation of the racing car through the electrical signal transmitted by the angle signal sensor 102, and then control the corresponding hydraulic telescopic rod 8 to rise and fall.

[0040] When the car turns left, the steering wheel 101 turns left by a certain angle, and the steering shaft 104 will also turn by a certain angle. At this time, the angle signal sensor 102 will generate a corresponding electrical signal and transmit it to the oil valve controller 6. At this time, the oil valve controller 6 receives the electrical signal of turning left. At this time, the oil valve controller 6 controls the car to lower the left side of the car body and raise the right side. The oil valve controller 6 controls the two hydraulic telescopic rods 8 on the left side of the car: the hydraulic oil flows into the upper oil chamber 804 through the first oil port 806, and the hydraulic oil in the lower oil chamber 805 flows back to the oil storage tank through the second oil port 807, the piston 802 moves downward, and the left side of the car body is lowered. At the same time, the oil valve controller 6 controls the two hydraulic telescopic rods 8 on the right side, the hydraulic oil flows into the lower oil chamber 805 through the second oil port 807, and the hydraulic oil in the upper oil chamber 804 flows back to the oil storage tank through the first oil port 806, the piston 802 moves upward, and the right side of the car body is raised. When the steering wheel 101 is returned to the right position, the electrical signal disappears, and the hydraulic telescopic rods 8 on both sides of the car return to their initial positions.

[0041] Similarly, when the car turns right, the height of the right side of the car needs to be lowered and the height of the left side of the car needs to be raised, that is, the oil valve controller 6 receives the right turn electrical signal transmitted from the angle signal sensor 102. At this time, the oil valve controller 6 controls the two hydraulic telescopic rods 8 on the right side of the car, and the hydraulic oil flows into the upper oil chamber 804 through the first oil port 806, while the hydraulic oil in the lower oil chamber 805 flows back to the oil storage tank through the second oil port 807, and the piston 802 moves downward, and the right side of the car body is lowered. At the same time, the oil valve controller 6 controls the two hydraulic telescopic rods 8 on the left side, and the hydraulic oil flows into the lower oil chamber 805 through the second oil port 807, while the hydraulic oil in the upper oil chamber 804 flows back to the oil storage tank through the first oil port 806, and the piston 802 moves upward, and the left side of the car body is raised. When the steering wheel 101 is returned to the center, the electrical signal disappears, and the hydraulic telescopic rods 8 on both sides of the car return to the initial position. Among them, when the steering wheel 101 is within 5 degrees of rotation to the left and right, the lifting function of the hydraulic telescopic rod 8 is not triggered.

[0042] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A racing car adjustable suspension device, comprising a frame and wheels, characterized in that: It also includes a steering mechanism, a shock absorbing mechanism, and a suspension mechanism; the steering mechanism includes a steering wheel, a steering shaft and an angle signal sensor, the steering wheel and the steering shaft are fixedly connected, the steering shaft is rotatably connected to the frame through a bearing, and the angle signal sensor is arranged on the steering shaft, identifies the angle of the steering wheel and converts it into an electrical signal; one end of the shock absorbing mechanism is fixedly connected to the frame, and the other end is fixedly connected to the hydraulic telescopic rod in the suspension mechanism; the suspension mechanism also includes a tripod, the tripod includes a first tripod and a second tripod, the second tripod is welded with a support plate, the support plate is fixed to the other end of the hydraulic telescopic rod, and bears the force transmitted by the suspension; the up and down extension of the hydraulic telescopic rod is realized by the cooperation of a hydraulic pump and an oil valve controller, the oil valve controller receives the electrical signal of the angle signal sensor, and then controls the oil supply of the hydraulic pump to achieve the rise and fall of the inner and outer body of the racing car.

2. The adjustable suspension device for a racing car according to claim 1, characterized in that: The hydraulic telescopic rod is composed of a piston rod, a piston and a piston cylinder. The piston divides the piston cylinder into an upper oil chamber and a lower oil chamber. A first oil port is provided at the top of the upper oil chamber, and a second oil port is provided at the bottom of the lower oil chamber. The lifting and lowering of the piston is controlled by controlling the oil volume in the upper oil chamber and the lower oil chamber.

3. The adjustable suspension device for a racing car according to claim 1, characterized in that: One end of the first tripod connected to the vehicle frame is pin-connected, the first tripod is connected to the front wheel hub by a pin, and is fixedly connected to the rear wheel hub.

4. The adjustable suspension device for a racing car according to claim 1, characterized in that: The shock absorbing mechanism is composed of a spring and a shock absorber. The spring and the shock absorber are coaxially arranged, and the spring wraps the outer peripheral surface of the shock absorber.

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