Real-time measuring device for multi-dimensional force of wheel

Abstract

The utility model discloses a wheel multi-dimensional force real-time measuring device, which comprises a multi-dimensional force sensor, a hub bearing and a vehicle-mounted controller, and a rolling body is arranged between the outer ring and the inner ring of the hub bearing; the outer ring of the hub bearing is fixedly connected with the multi-dimensional force sensor; the vehicle-mounted controller is connected with the multi-dimensional force sensor through a signal line. According to the utility model, through the multi-dimensional force sensor arranged on the hub bearing, the wheel multi-dimensional force generated when the wheel interacts with the ground is collected in real time, and the collected data is transmitted to the vehicle-mounted controller; the vehicle-mounted controller can carry out calibration and verification of wheel multi-dimensional force, hub bearing health state diagnosis, wheel health state diagnosis, vehicle motion control, intelligent driving motion control, intelligent cabin active noise reduction control and cloud model control.

Description

Technical Field

[0001] This utility model relates to an intelligent control device for automobiles, specifically to a real-time multi-dimensional force measurement device for wheels. Background Technology

[0002] Currently, in the early stages of automotive development, chassis engineers typically use multi-dimensional force sensors to collect wheel loads. This data is then used for structural design of chassis components to achieve reliability and lightweight design goals. A multi-dimensional force sensor is a force sensor capable of simultaneously measuring force and torque components in two or more directions. In a Cartesian coordinate system, force and torque can each be decomposed into three components. Therefore, the most complete form of multi-dimensional force is a six-dimensional force / torque sensor, which can simultaneously measure three force components and three torque components. Widely used multi-dimensional force sensors are of this six-component force sensor type.

[0003] With the development of vehicle intelligence and vehicle domain control technology, real-time multi-dimensional wheel forces resulting from the interaction between the wheel and the road surface are crucial for wheel hub bearing health status diagnosis, wheel health status diagnosis, vehicle motion control, intelligent driving motion control, intelligent cockpit active noise reduction control, and cloud control model calculation.

[0004] Wheel multidimensional forces refer to the forces exerted by the interaction between the wheel and the road surface. For example... Figure 1 As shown, according to the vehicle engineering definition, the vehicle's forward and backward motion direction is defined as the X-axis, the vehicle's lateral motion direction is defined as the Y-axis, and the vehicle's vertical motion direction is defined as the Z-axis; then the multidimensional forces of the wheel include the force 61 (Fx) in the forward and backward motion direction of the wheel, the force 62 (Fy) in the lateral motion direction of the wheel, the force 63 (Fz) in the vertical motion direction of the wheel, the torque 64 (Mx) of the wheel rotating around the X-axis, the torque 65 (My) of the wheel rotating around the Y-axis, and the torque 66 (Mz) of the wheel rotating around the Z-axis.

[0005] Chinese invention patent document CN111380649A discloses a multi-dimensional force sensor for automobile wheels (WheelForce Transducer), which adopts a spoke-type structure and an elastic body directly connected to the wheel. The spokes of the sensor rotate with the wheel, and the various loads on the wheel cause the elastic beam to undergo tensile, compressive, torsional, and bending deformations. By selecting measurement points and arranging strain gauges and bridges, the output of each bridge circuit directly corresponds to the load in each dimension, thereby realizing the measurement of multi-dimensional forces.

[0006] This type of multi-dimensional force sensor can only be used for test-grade wheels and cannot perform real-time measurements throughout the entire life cycle of a vehicle. In particular, it cannot meet the requirements for mass installation, styling, and cost in complete vehicles. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a wheel multi-dimensional force real-time measuring device which can measure the multi-dimensional force of the interaction between the wheel and the road surface in the whole life cycle of the vehicle.

[0008] To solve the above technical problem, the technical solution of the wheel multi-dimensional force real-time measuring device is:

[0009] The wheel multi-dimensional force real-time measuring device comprises a multi-dimensional force sensor 41, a hub bearing and a vehicle-mounted controller 1, a rolling body 33 is arranged between the outer ring 31 and the inner ring 32 of the hub bearing, the outer ring 31 of the hub bearing is fixedly connected with the multi-dimensional force sensor 41, and the vehicle-mounted controller 1 is connected with the multi-dimensional force sensor 41 through a signal line.

[0010] In another embodiment, the vehicle-mounted controller 1 is connected with a remote controller through wired or wireless connection.

[0011] In another embodiment, the inner ring 32 of the hub bearing is fixedly connected with the rim of the wheel 11.

[0012] In another embodiment, the flange surface of the inner ring 32 of the hub bearing is fixedly connected with the rim of the wheel 11 through a hub bolt 43.

[0013] In another embodiment, the multi-dimensional force sensor 41 has an inner ring and an outer ring, and the inner ring of the multi-dimensional force sensor 41 is matched with the outer ring of the hub bearing.

[0014] In another embodiment, the inner ring of the multi-dimensional force sensor 41 is fixedly connected with the outer ring of the hub bearing.

[0015] In another embodiment, the inner ring of the multi-dimensional force sensor 41 is fixedly connected with the outer ring of the hub bearing in a structure adhesive bonding or threaded fastening mode.

[0016] In another embodiment, the inner ring of the multi-dimensional force sensor 41 is in interference fit with the outer ring of the hub bearing.

[0017] In another embodiment, the multi-dimensional force sensor 41 is arranged at one end of the outer ring 31 of the hub bearing.

[0018] In another embodiment, the multi-dimensional force sensor 41 is arranged at both ends of the outer ring 31 of the hub bearing.

[0019] The utility model can achieve the following technical effects:

[0020] The utility model discloses a multi -dimensional force sensor is set up on wheel hub bearing, real -time collection car wheel and the ground interaction car wheel multi -dimensional force to the data transmission of collection is given vehicle controller, makes vehicle controller can carry out car wheel multi -dimensional force calibration check, wheel hub bearing health state diagnosis, car wheel health state diagnosis, vehicle motion control, intelligent driving motion control, intelligent seat cabin initiative noise reduction control and cloud model control.

[0021] Since the multi-dimensional force sensor is fixedly arranged on the wheel hub bearing, the utility model can collect the multi-dimensional force of the wheel in real time, and the real-time multi-dimensional force data of the wheel can be used as the data base of the vehicle motion control technology of human driving and intelligent driving, and be used for subsequent vehicle function improvement, for example, changing the interaction force between the existing wheel and the road, which is controlled by the power system, the braking system, the steering system and the suspension system ECU respectively, reducing the software complexity of the wheel motion control, reducing the number of chassis system ECUs, saving development time and cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Those skilled in the art will understand that the following description is only illustrative of the principles of the utility model, which can be applied in various ways to realize many different alternative embodiments. These descriptions are only used to show the general principles of the teaching of the utility model and do not mean to limit the utility model concept disclosed herein.

[0023] The drawings combined in the specification and constituting a part of the specification show the embodiments of the utility model, and together with the general description above and the detailed description of the following drawings, are used to explain the principles of the utility model.

[0024] The utility model will be further described in detail below in combination with the drawings and specific embodiments:

[0025] Figure 1 is the schematic diagram of the multi-dimensional force of the wheel;

[0026] Figure 2 is the schematic diagram of the multi-dimensional force sensor; wherein (a) is the side schematic diagram of the multi-dimensional force sensor; (b) is the three-dimensional schematic diagram of the multi-dimensional force sensor;

[0027] Figure 3 is the schematic diagram of the real-time measurement device of the multi-dimensional force of the wheel of the utility model;

[0028] Figure 4 is the schematic diagram of the wheel hub bearing outer ring provided with one multi-dimensional force sensor;

[0029] Figure 5 is the schematic diagram of the wheel hub bearing outer ring provided with two multi-dimensional force sensors;

[0030] Figure 6It is the schematic view of the car of the utility model.

[0031] Mark explanation in drawing:

[0032] 1 is vehicle-mounted controller,

[0033] 41, 42 are multi-dimensional force sensors, 43 is a hub bolt,

[0034] 31 is the outer ring of the hub bearing, 32 is the inner ring of the hub bearing,

[0035] 33 is a rolling element, 11 is a wheel. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the usual meaning by those skilled in the art. The "first", "second" and similar words used in this paper do not represent any order, quantity or importance, but are used to distinguish different components. "Including" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connection" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] As Figure 3 shown, the utility model wheel multi-dimensional force real-time measuring device, including multi-dimensional force sensor 41, multi-dimensional force sensor 41 fixedly connected hub bearing's outer ring 31, the flange surface of hub bearing's outer ring 31, hub bearing inner ring 32 is fixedly connected the rim of wheel 11 through hub bolt 43, so that multi-dimensional force sensor 41 is fixedly arranged on the hub bearing;

[0038] The outer ring 31 of the hub bearing and the inner ring 32 of the hub bearing are provided with a rolling element 33 therebetween.

[0039] As Figure 2As shown, the multi-dimensional force sensor 41 has an inner ring and an outer ring; the inner ring of the multi-dimensional force sensor 41 matches the outer ring of the hub bearing, and the two are fastened and connected by structural adhesive bonding or threaded fastening; for example, the inner ring of the multi-dimensional force sensor 41 is fastened and connected with the outer ring of the hub bearing by one or more radially extending bolts 41-1, as shown in Figure 2 (b) shown;

[0040] Alternatively, the inner ring of the multi-dimensional force sensor 41 and the outer ring of the hub bearing form an interference fit;

[0041] The multi-dimensional force sensor 41 is connected to the vehicle controller 1 through a signal line; the vehicle controller 1 is connected to the remote controller by wire or wirelessly.

[0042] During the driving of the vehicle wheel 11 on the road, the force received by the vehicle wheel 11 is transmitted through the rim of the vehicle wheel 11 to the rolling body 33 of the hub bearing through the inner ring 32 of the hub bearing, and then transmitted to the outer ring 31 of the hub bearing through the rolling body 33, and the outer ring 31 of the hub bearing is deformed; the deformation is collected by the multi-dimensional force sensor 41 connected to the outer ring 31 of the hub bearing and outputs the real-time multi-dimensional force of the vehicle wheel interacting with the road, and then sends it to the vehicle controller through the signal line.

[0043] As shown in Figure 4 The multi-dimensional force sensor 41 can be arranged at one end of the outer ring 31 of the hub bearing;

[0044] As shown in Figure 5 The multi-dimensional force sensor 41 and the multi-dimensional force sensor 42 can also be arranged at both ends of the outer ring 31 of the hub bearing, respectively.

[0045] As shown in Figure 6 The embodiment of the utility model is applied to a car; four vehicle wheels 11, 12, 13, 14 of the car are respectively provided with hub bearings 21, 22, 23, 24, and the hub bearings 21, 22, 23, 24 are respectively provided with multi-dimensional force sensors; the multi-dimensional force sensors of the hub bearings 21, 22, 23, 24 are respectively connected to the vehicle controller 1 through signal lines;

[0046] The multi-dimensional force sensor transmits the multi-dimensional force information of each vehicle wheel collected in real time to the vehicle controller 1, and the vehicle controller 1 transmits the multi-dimensional force information of each vehicle wheel to the remote controller by wire or wirelessly, so as to obtain the real-time multi-dimensional force of the four vehicle wheels 11, 12, 13, 14.

[0047] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications of the present application belong to the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A real-time multi-dimensional force measurement device for wheels, characterized in that, Including multi-dimensional force sensors; A hub bearing, wherein rolling elements are disposed between its outer ring and its inner ring; the outer ring of the hub bearing is fixedly connected to the multi-dimensional force sensor; and The vehicle controller is connected to the multi-dimensional force sensor via a signal line.

2. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The vehicle-mounted controller connects to the remote controller via wired or wireless means.

3. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The inner ring of the hub bearing is fixedly connected to the rim of the wheel.

4. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The flange face of the inner ring of the wheel hub bearing is fixedly connected to the wheel rim by wheel hub bolts.

5. The wheel multi-dimensional force real-time measurement device according to claim 1, characterized in that, The multidimensional force sensor has an inner ring and an outer ring; the inner ring of the multidimensional force sensor matches the outer ring of the wheel hub bearing.

6. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The inner ring of the multidimensional force sensor is fastened to the outer ring of the wheel hub bearing.

7. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The inner ring of the multi-dimensional force sensor is fastened to the outer ring of the wheel hub bearing by means of structural adhesive bonding or thread fastening.

8. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The inner ring of the multi-dimensional force sensor and the outer ring of the wheel hub bearing form an interference fit.

9. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The multi-dimensional force sensor is installed at one end of the outer ring of the wheel hub bearing.

10. The real-time multi-dimensional force measurement device for wheels according to claim 1, characterized in that, The multidimensional force sensors are respectively installed at both ends of the outer ring of the wheel hub bearing.

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