Suspension type automobile shock absorber and control method

Abstract

The present invention discloses a suspension type automobile shock absorber and a control method. The shock absorber is composed of a tension spring of a length measuring sensor, a permanent magnet tube, a damping coil sleeved in the permanent magnet tube, a damping coil, a secondary spring, a main spring, and a rubber jacket from the inside to the outside. The upper end of the length measuring sensor, the upper end of the secondary spring, and the main spring are fixed under the top plate. The permanent magnet tube is installed under the length measuring sensor, and the lower end of the main spring is fixed on the base. The lower end of the screw rod is installed on the top of the inverted steel basin cover, and the driven gear installed on the lower section of the screw rod is meshed with the output gear of the gear reduction motor and the calculator gear. The lower end of the secondary spring is fixed on the lifting platform, and the nut at the center of the lifting platform is screwed on the screw rod. Four sliding pipes pass through four holes on the lifting platform, the lower end is fixed on the top of the inverted steel basin cover, and the upper end is fixed on the damping platform. The upper end of the screw rod is installed on the damping platform, and the damping coil is installed on the damping platform. The weighted elastic coefficient is adjusted by adjusting the position of the lifting platform.

Description

Technical field:

[0001] The invention relates to a suspension type automobile shock absorber and a control method. Background technology:

[0002] Inflatable car shock absorbers are the most popular car shock absorbers in the market in recent years. The sensitivity of inflatable car shock absorbers is very high, but the shock absorption force is too small. When encountering a large vibration, it will be overloaded and fail, and it will not play a shock absorption role. Inflatable car shock absorbers will heat up during the shock absorption process, causing the pneumatic piston seal to age quickly, and the pneumatic piston seal will leak due to wear. The hydraulic shock absorber has a large shock absorption force, but the shock absorption speed is slow. The suspension hydraulic shock absorber has a small shock absorption amplitude. The suspension hydraulic shock absorber has a slow shock absorption speed and is suitable for low-frequency vibrations. It is suitable for heavy tanks. The suspension hydraulic shock absorber is not suitable for cars. The suspension spring shock absorber is a traditional car shock absorber. The suspension spring shock absorber cannot be adjusted. The suspension spring shock absorber will not absorb energy. The suspension spring shock absorber will resonate and increase the vibration. In the past, the shock absorbers used in cars were all suspension spring shock absorbers. Summary of the invention:

[0003] Suspension type automobile shock absorber. Suspension type automobile shock absorber is mainly composed of top plate, main spring, auxiliary spring, permanent magnet tube, damping coil, rubber jacket and base. The damping coil is sleeved outside the permanent magnet tube, the auxiliary spring is sleeved outside the damping coil, the upper end of the auxiliary spring is fixed under the top plate, the main spring is sleeved outside the auxiliary spring, the upper end of the main spring is fixed under the top plate, the rubber jacket is sleeved outside the main spring, and the lower end of the main spring is fixed on the base. The main spring is made of thick steel wire and the auxiliary spring is made of thin steel wire. The middle position of the base is equipped with a pressure sensor, a control circuit board, a gear reduction motor, and an inverted steel basin cover from bottom to top. The lower end of the screw rod is installed at the top center of the inverted steel basin cover through a bearing, and the lower section of the screw rod is equipped with a driven gear. The output shaft of the gear reduction motor extends from the left side of the inverted steel basin cover, and the output shaft of the gear reduction motor is equipped with an output gear, the output gear is meshed with the left side of the driven gear, and the calculator gear is meshed with the right side of the driven gear. The lower end of the auxiliary spring is fixed on the lifting platform 1, and the nut at the center of the lifting platform is screwed on the screw rod. There are four centrally symmetrical holes on the lifting platform, and four sliding tubes pass through the four holes on the lifting platform. The lower ends of the four sliding tubes are fixed on the top of the inverted steel basin cover, and the upper ends of the four sliding tubes are fixed on the damping platform. The upper end of the screw rod is installed at the center of the damping platform through a bearing, and a damping coil is installed on the damping platform. The length measuring sensor is fixed at the center position below the top plate 1, the permanent magnet tube is installed below the length measuring sensor, the permanent magnet tube is inserted into the damping coil, and the tension spring of the length measuring sensor passes through the permanent magnet tube downward and is then fixed on the bearing cover at the upper end of the screw rod. A Hall effect sensor probe is installed on the damping coil, and the Hall effect sensor probe wire and the damping coil wire are hidden in the sliding tube. The wires of the length measuring sensor, the gear reduction motor wire, the damping coil wire, the Hall effect sensor probe wire and the pressure sensor wire are installed on the control circuit board, the power wire from the lithium battery is connected to the control circuit board, and the control wire from the car computer is connected to the control circuit board.

[0004] Control method of suspension automobile shock absorber. Due to the different weights of the passengers, the pressures borne by the four suspension automobile shock absorbers are also different, and the data detected by the length measuring sensor and pressure sensor of the suspension automobile shock absorber are also different. The car computer starts the gear reduction motor according to these data. The gear reduction motor drives the driven gear to rotate through the output gear, thereby driving the screw rod to rotate in the nut of the lifting platform, so that the lifting platform rises or lowers, and the data of the calculator gives the position of the lifting platform. Compress or stretch the auxiliary spring to keep the height of the four suspension automobile shock absorbers consistent and keep the four wheels on the same plane. When the car is driving at a low speed on a flat urban road, the elastic coefficient of the suspension automobile shock absorber is required to be small and adopt a passive power generation damping mode. Reverse DC is passed to the gear reduction motor, and the gear reduction motor drives the driven gear to rotate forward through the reverse rotation of the output gear, thereby driving the screw rod to rotate forward in the nut of the lifting platform, so that the lifting platform is lowered and the auxiliary spring is stretched. The data of the calculator gives the position of the lifting platform. The weighted elastic coefficient of the suspension automobile shock absorber is reduced, the damping coil is in the power generation state, and different damping coefficients are obtained by different loads of the damping coefficient. In mountainous areas, where roads are bumpy and full of potholes, the suspension shock absorber needs to have a higher elastic coefficient and be in an active damping state. When positive DC is supplied to the gear reduction motor, the gear reduction motor drives the driven gear to reverse through the positive rotation of the output gear, thereby driving the screw rod to reverse in the nut of the lifting platform, raising the lifting platform and compressing the secondary spring. The data from the calculator gives the position of the lifting platform, and the weighted elastic coefficient of the suspension shock absorber increases. Based on the data from the length measuring sensor and the Hall effect sensor probe installed on the damping coil, the car computer supplies positive DC to the damping coil when the car moves upward, pulls the permanent magnet tube downward, and prevents the car from moving upward. When the car falls downward, reverse DC is supplied to the damping coil, pushing the permanent magnet tube upward to prevent the car from falling downward. When the car turns sharply, the gear reduction motor of the suspension shock absorber on the outside of the car is supplied with positive direct current. The gear reduction motor drives the driven gear to reverse through the output gear, thereby driving the screw rod to reverse in the nut of the lifting platform, so that the lifting platform is raised and the auxiliary spring is compressed. The data of the calculator gives the position of the lifting platform. The weighted elastic coefficient of the suspension shock absorber increases. According to the data given by the Hall effect sensor probe installed on the damping coil of the length measuring sensor, the car computer supplies reverse direct current to the damping coil when the car falls down, pushes the permanent magnet tube upward, and prevents the outer side of the car from falling down. When the car brakes suddenly, the gear reduction motor of the two suspension shock absorbers at the front end is supplied with positive direct current. The gear reduction motor drives the driven gear through the output gear to rotate forward, thereby driving the screw rod to reverse in the nut of the lifting platform, so that the lifting platform is raised and the auxiliary spring is compressed. The data of the calculator gives the position of the lifting platform.The weighted elastic coefficient of the suspended car shock absorber increases, and the car computer, based on the data given by the length measuring sensor and the Hall effect sensor probe installed on the damping coil, supplies reverse direct current to the damping coil and pushes the permanent magnet tube upward when the car falls downward, thereby preventing the front end of the car from falling downward. Description of the drawings:

[0005] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0006] Figure 1 It is a structural principle diagram of the suspension type automobile shock absorber of the present invention. Specific implementation method:

[0007] Figure 1As shown, the suspension type automobile shock absorber. The suspension type automobile shock absorber is mainly composed of a top plate 1, a main spring 4, a secondary spring 5, a permanent magnet tube 7, a damping coil 18, a rubber jacket 3 and a base 2. The damping coil 18 is sleeved outside the permanent magnet tube 7, the secondary spring 5 is sleeved outside the damping coil 18, the upper end of the secondary spring 5 is fixed under the top plate 1, the main spring 4 is sleeved outside the secondary spring 5, the upper end of the main spring 4 is fixed under the top plate 1, the rubber jacket 3 is sleeved outside the main spring 4, and the lower end of the main spring 4 is fixed on the base 2. The main spring 4 is made of thick steel wire, and the secondary spring 5 is made of thin steel wire. The middle position of the base 2 is equipped with a pressure sensor, a control circuit board 8, a gear reduction motor 9, and an inverted steel basin cover 14 from bottom to top. The lower end of the screw rod 10 is installed at the top center position of the inverted steel basin cover 14 through a bearing, and the lower section of the screw rod 10 is equipped with a driven gear 11. The output shaft of the gear reduction motor 9 extends out from the left side of the inverted steel basin cover 14. The output shaft of the gear reduction motor 9 is equipped with an output gear 12. The output gear 12 meshes with the left side of the driven gear 11, and the calculator gear 13 meshes with the right side of the driven gear 11. The lower end of the auxiliary spring 5 is fixed on the lifting platform 16, and the nut at the center of the lifting platform 16 is screwed on the screw rod 10. There are four centrally symmetrical holes on the lifting platform 16, and four slide tubes 15 pass through the four holes on the lifting platform 16. The lower ends of the four slide tubes 15 are fixed on the top of the inverted steel basin cover 14, and the upper ends of the four slide tubes 15 are fixed on the damping platform 17. The upper end of the screw rod 10 is installed at the center of the damping platform 17 through a bearing, and a damping coil 18 is installed on the damping platform 17. The length measuring sensor 6 is fixed at the center position below the top plate 1, the permanent magnet tube 7 is installed below the length measuring sensor 6, the permanent magnet tube 7 is inserted into the damping coil 18, and the tension spring of the length measuring sensor 6 passes downward through the permanent magnet tube 7 and is then fixed to the bearing cover at the upper end of the screw rod 10. A Hall effect sensor probe is installed on the damping coil 18, and the Hall effect sensor probe wire and the damping coil 18 wire are hidden in the slide tube 15. The wires of the length measuring sensor 6, the gear reduction motor 9 wires, the damping coil 18 wires, the Hall effect sensor probe wires and the pressure sensor wires are installed on the control circuit board 8, the power wires from the lithium battery are connected to the control circuit board 8, and the control wires from the car computer are connected to the control circuit board 8.

[0008] Figure 1As shown, the control method of the suspension automobile shock absorber. Since the weight of the passengers is different, the pressures borne by the four suspension automobile shock absorbers are also different, and the data detected by the length measuring sensor 6 and the pressure sensor of the suspension automobile shock absorber are also different. The automobile computer starts the gear reduction motor 9 according to these data, and the gear reduction motor 9 drives the driven gear 11 to rotate through the output gear 12, thereby driving the screw rod 10 to rotate in the nut of the lifting platform 16, so that the lifting platform 16 rises or lowers, and the data of the calculator gives the position of the lifting platform 16. Compress or stretch the auxiliary spring 5 to keep the height of the four suspension automobile shock absorbers consistent, so that the four wheels remain on the same plane. When the car is driving at a low speed on a flat urban road, the elastic coefficient of the suspension automobile shock absorber is required to be small and adopt a passive electric damping mode. Reverse DC is passed to the gear reduction motor 9, and the gear reduction motor 9 drives the driven gear 11 to rotate forward through the output gear 12 reverse rotation, thereby driving the screw rod 10 to rotate forward in the nut of the lifting platform 16, so that the lifting platform 16 is lowered and the auxiliary spring 5 is stretched, and the data of the calculator gives the position of the lifting platform 16. The weighted elastic coefficient of the suspension automobile shock absorber is reduced, and the damping coil 18 is in a power generation state, and different damping coefficients are obtained by different loads of the damping coefficient. In mountainous areas, the roads are rugged and bumpy, and the suspension automobile shock absorber needs to have a higher elastic coefficient, and the suspension automobile shock absorber needs to be in an active damping state. Positive direct current is supplied to the gear reduction motor 9, and the gear reduction motor 9 drives the driven gear 11 to reverse through the positive rotation of the output gear 12, thereby driving the screw rod 10 to reverse in the nut of the lifting platform 16, so that the lifting platform 16 is raised and the auxiliary spring 5 is compressed. The data of the calculator gives the position of the lifting platform 16, and the weighted elastic coefficient of the suspension automobile shock absorber increases. According to the data given by the length measuring sensor 6 and the Hall effect sensor probe installed on the damping coil 18, the automobile computer supplies positive direct current to the damping coil 18 when the car moves upward, pulls the permanent magnet tube 7 downward, and prevents the car from moving upward. When the car falls downward, reverse direct current is supplied to the damping coil 18, and the permanent magnet tube 7 is pushed upward to prevent the car from falling downward. When the car turns sharply, the gear reduction motor 9 of the car's outer suspension shock absorber is fed with positive direct current, and the gear reduction motor 9 drives the driven gear 11 to reverse through the output gear 12, thereby driving the screw rod 10 to reverse in the nut of the lifting platform 16, so that the lifting platform 16 is raised and the auxiliary spring 5 is compressed, and the data of the calculator gives the position of the lifting platform 16. The weighted elastic coefficient of the suspension shock absorber increases, and the car computer feeds reverse direct current to the damping coil 18 and pushes the permanent magnet tube 7 upward when the car falls downward according to the data given by the length measuring sensor 6 and the Hall effect sensor probe installed on the damping coil 18, so as to prevent the outer side of the car from falling downward.When the car brakes suddenly, the gear reduction motor 9 of the two front suspension car shock absorbers is supplied with positive direct current, and the gear reduction motor 9 drives the driven gear 11 to reverse through the output gear 12, thereby driving the screw rod 10 to reverse in the nut of the lifting platform 16, so that the lifting platform 16 is raised and the auxiliary spring 5 is compressed. The data of the calculator gives the position of the lifting platform 16. The weighted elastic coefficient of the suspension car shock absorber increases, and the car computer supplies reverse direct current to the damping coil 18 and pushes the permanent magnet tube 7 upward when the car falls downward according to the data given by the length measuring sensor 6 and the Hall effect sensor probe installed on the damping coil 18, so as to prevent the front end of the car from falling downward.

Claims

1. A suspension type automobile shock absorber, the suspension type automobile shock absorber mainly comprises a top plate (1), a main spring (4), an auxiliary spring (5), a permanent magnet tube (7), a damping coil (18), a rubber jacket (3) and a base (2), wherein the damping coil (18) is sleeved outside the permanent magnet tube (7), the auxiliary spring (5) is sleeved outside the damping coil (18), the upper end of the auxiliary spring (5) is fixed below the top plate (1), the main spring (4) is sleeved outside the auxiliary spring (5), the upper end of the main spring (4) is fixed below the top plate (1), the rubber jacket (3) is sleeved outside the main spring (4), and the lower end of the main spring (4) is fixed on the base (2); the main spring (4) is made of thick steel wire, and the auxiliary spring (5) is made of thin steel wire, characterized in that: The base (2) is provided with a pressure sensor, a control circuit board (8), a gear reduction motor (9), and an inverted steel basin cover (14) in sequence in the middle position from bottom to top. The lower end of the screw rod (10) is mounted at the top center position of the inverted steel basin cover (14) through a bearing. The lower section of the screw rod (10) is provided with a driven gear (11). The output shaft of the gear reduction motor (9) extends out from the left side of the inverted steel basin cover (14). The output shaft of the gear reduction motor (9) is provided with an output gear (12). The output gear (12) is connected to the driven gear (11). The left side of the gear (11) is meshed, and the calculator gear (13) is meshed with the right side of the driven gear (11). The lower end of the auxiliary spring (5) is fixed on the lifting platform (16). The nut at the center of the lifting platform (16) is screwed on the screw rod (10). There are four centrally symmetrical holes on the lifting platform (16). Four slide pipes (15) pass through the four holes on the lifting platform (16). The lower ends of the four slide pipes (15) are fixed on the top of the inverted steel basin cover (14). The upper ends of the four slide pipes (15) are fixed on the damping platform (17). ), the upper end of the screw rod (10) is mounted at the center of the damping platform (17) through a bearing, the damping platform (17) is equipped with the damping coil (18), the length measuring sensor (6) is fixed at the center below the top plate (1), the permanent magnet tube (7) is mounted below the length measuring sensor (6), the permanent magnet tube (7) is inserted into the damping coil (18), the tension spring of the length measuring sensor (6) passes downward through the permanent magnet tube (7) and is then fixed to the bearing cover at the upper end of the screw rod (10), the A Hall effect sensor probe is mounted on the damping coil (18), the Hall effect sensor probe wire and the damping coil (18) wire are hidden in the slide tube (15), the wire of the length measuring sensor (6), the wire of the gear reduction motor (9), the wire of the damping coil (18), the wire of the Hall effect sensor probe and the wire of the pressure sensor are mounted on the control circuit board (8), the power line drawn from the lithium battery is connected to the control circuit board (8), and the control wire drawn from the vehicle computer is connected to the control circuit board (8).

2. The control method of the suspension type automobile shock absorber according to claim 1, characterized in that: Since the weights of the passengers are different, the pressures borne by the four suspension automobile shock absorbers are also different, and the data detected by the length measuring sensor (6) and the pressure sensor of the suspension automobile shock absorber are also different. The automobile computer starts the gear reduction motor (9) based on these data. The gear reduction motor (9) drives the driven gear (11) to rotate through the output gear (12), thereby driving the screw rod (10) to rotate in the nut of the lifting platform (16), so that the lifting platform (16) rises or falls. The data of the calculator gives the position of the lifting platform (16), compresses or stretches the auxiliary spring (5), so that the heights of the four suspension automobile shock absorbers are kept consistent, so that the four wheels are kept at one On a plane; when a car is traveling at a low speed on a gentle urban road, the elastic coefficient of the suspension automobile shock absorber is required to be small and a passive power generation damping mode is adopted. Reverse direct current is supplied to the gear reduction motor (9), and the gear reduction motor (9) drives the driven gear (11) to rotate forward through the output gear (12) in reverse rotation, thereby driving the screw rod (10) to rotate forward in the nut of the lifting platform (16), so that the lifting platform (16) is lowered and the auxiliary spring (5) is stretched. The data of the calculator gives the position of the lifting platform (16), the weighted elastic coefficient of the suspension automobile shock absorber is reduced, the damping coil (18) is in a power generation state, and different damping coefficients are obtained with different loads of the damping coefficient;In mountainous areas, the roads are rugged and full of potholes, and the suspension automobile shock absorber needs to have a higher elastic coefficient. The suspension automobile shock absorber needs to be in an active damping state. A positive direct current is supplied to the gear reduction motor (9). The gear reduction motor (9) drives the driven gear (11) to reverse through the output gear (12), thereby driving the screw rod (10) to reverse in the nut of the lifting platform (16), so that the lifting platform (16) is raised and the auxiliary spring (5) is compressed. The data of the calculator gives the position of the lifting platform (16), and the weighted elastic coefficient of the suspension automobile shock absorber increases. The automobile computer calculates the position of the lifting platform (16) according to the length measuring sensor (6). , the Hall effect sensor probe installed on the damping coil (18) provides data, when the car moves upward, the damping coil (18) is supplied with positive direct current, the permanent magnet tube (7) is pulled downward, and the car is prevented from moving upward; when the car falls downward, the damping coil (18) is supplied with reverse direct current, the permanent magnet tube (7) is pushed upward, and the car is prevented from falling downward; when the car turns sharply, the gear reduction motor (9) is supplied with positive direct current to the car outer suspension shock absorber, and the gear reduction motor (9) drives the driven gear (11) to rotate reversely through the output gear (12), thereby driving the screw rod (10) to move upward. The nut of the lowering platform (16) is reversed, so that the lifting platform (16) is raised and the auxiliary spring (5) is compressed. The data of the calculator gives the position of the lifting platform (16), and the weighted elastic coefficient of the suspension type automobile shock absorber increases. The automobile computer, based on the data given by the length measuring sensor (6) and the Hall effect sensor probe installed on the damping coil (18), supplies reverse direct current to the damping coil (18) when the automobile falls downward, pushes the permanent magnet tube (7) upward, and prevents the outer side of the automobile from falling downward. When the automobile brakes suddenly, the gear reduction motors (9) of the two suspension type automobile shock absorbers at the front end are supplied with positive direct current, and ... The speed motor (9) drives the driven gear (11) to rotate in the reverse direction through the output gear (12), thereby driving the screw rod (10) to rotate in the reverse direction in the nut of the lifting platform (16), so that the lifting platform (16) is raised and the auxiliary spring (5) is compressed. The data of the calculator gives the position of the lifting platform (16), and the weighted elastic coefficient of the suspension vehicle shock absorber increases. The vehicle computer, based on the data given by the length measuring sensor (6) and the Hall effect sensor probe installed on the damping coil (18), supplies reverse direct current to the damping coil (18) when the vehicle falls downward, and pushes the permanent magnet tube (7) upward to prevent the front end of the vehicle from falling downward. ;

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