Method and device for automatically adjusting IBC installation mode in whole vehicle state

Abstract

The invention provides an automatic adjustment method and device for an IBC installation mode in a whole vehicle state. The device comprises a base fixed to a vehicle body, a sliding block used for assisting in supporting the IBC, and a driving component used for driving the sliding block to move. The method comprises the steps that the current vibration frequency and vibration intensity of a brake pedal are collected; comparing the actually measured vibration intensity with permissible vibration intensity in a preset frequency-intensity corresponding table; and when the actually measured vibration intensity exceeds a permissible value, determining an IBC installation modal target according to the current vibration frequency, controlling the driving component to move the sliding block, and adjusting the auxiliary supporting position of the IBC, so that the supporting rigidity of the sliding block to the IBC is adjusted, and the whole IBC installation rigidity meets the target requirement. The adjustable auxiliary supporting device for adjusting the position of the IBC supporting point is additionally arranged, vibration detection and an automatic control strategy are combined, real-time dynamic adjustment of the IBC installation mode is achieved, resonance between the IBC and other excitation sources of the whole vehicle is effectively avoided, the implementation cost is low, and universality is high.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile brake systems, and in particular to a method and a device for automatically adjusting an IBC installation mode in a complete vehicle state. Background Art

[0002] With the development of the automotive industry, Integrated Brake Control (IBC) has become the mainstream trend in the development of automotive braking technology based on meeting the global automotive industry's needs for emission reduction, safety and autonomous driving. IBC replaces the electronic stability control system with an integrated unit, replacing the entire vehicle braking system composed of many subsystems such as the electronic stability control system, vacuum booster and related wiring harnesses, sensors, switches, electronic controllers and vacuum pumps in traditional fuel vehicles, reducing the weight by 25% to 30%.

[0003] Due to the high integration of IBC (integrating multiple components such as drive motor, hydraulic valve body, controller into a whole), its single body weight is relatively high, and usually a single IBC body weighs about 6kg. Due to the mandatory requirements of braking functionality, IBC must be installed on both sides of the front enclosure with the brake pedal. The front enclosure is a large stamped sheet metal part. In order to meet the lightweight requirements of new energy vehicles, its part thickness is strictly limited (currently the thickness of the front enclosure of new energy vehicles is thinner by more than 40% compared to traditional fuel vehicles).

[0004] If the IBC part with a large mass is assembled on the thin front part with low stiffness, the installation mode of the IBC part is low; under the stimulation of the engine, road surface, etc., the IBC is prone to produce large vibrations, which are then transmitted to the pedals (accelerator, brake pedal) and steering wheel, and finally perceived by users and cause complaints. Therefore, improving the installation mode of the IBC under the boundary of the whole vehicle is an important issue in the development of new energy vehicles.

[0005] In the prior art, one approach is to add lateral and vertical brackets between the CCB and the front enclosure on the brake pedal side. However, this method has the following disadvantages:

[0006] 1) Poor installation processability: The newly added bracket is located below the steering wheel inside the cab, with a small working space and difficult installation; the part is connected to multiple parts, the installation dimension chain is long, and the risk of batch installation failure is high;

[0007] 2) The solution is not universal: Most models of IP beams do not have diagonal bracing parts connected to the front enclosure. At the same time, the stiffness of the remaining pedal parts is low, and there is a lack of environmental parts for the installation of the horizontal bracket, so the solution cannot be applied. Different models have different distances between the brake pedal and the beam under the windshield. The longer the vertical bracket installation distance, the lower the support stiffness provided to the IBC and the worse the effect.

[0008] Another way to increase the IBC installation mode is to add a mounting bracket between the IBC and the lower cross member of the front panel to increase the vehicle installation stiffness of the IBC, thereby improving its installation mode. However, this method has the problem of poor commercial feasibility: IBC parts are generally modular parts from suppliers, and adding additional brackets involves changes to the production line.

[0009] Therefore, a new technical solution is needed to solve the above problems. Summary of the invention

[0010] The purpose of the present invention is to provide a method and device for automatically adjusting the IBC installation mode in a vehicle state to improve the vehicle installation mode of the IBC and avoid resonance with excitation sources such as an engine, a road surface, and a transmission system.

[0011] To achieve the above objectives, in a first aspect, the present invention provides a method for automatically adjusting the IBC installation mode in a complete vehicle state, comprising:

[0012] Collect the current vibration frequency f and vibration intensity K of the brake pedal;

[0013] Compare the current vibration intensity K with the corresponding permissible vibration intensity K at the current vibration frequency f i ;

[0014] When K>K i , set the target installation mode according to the current vibration frequency f, and determine the adjustment direction and adjustment stroke of the IBC auxiliary support point position according to the current vibration frequency f.

[0015] In some optional embodiments of the present invention, the method further comprises the following steps:

[0016] Determine the frequency range f over which the IBC can be adjusted min ~f max ;

[0017] When f≤(2(f min +f max )) / 3, f+A Hz is set as the IBC installation modal target;

[0018] When f>(2(f min +f max )) / 3, set fB Hz as the IBC installation modal target.

[0019] Preferably, the adjustable frequency range f of the IBC is determined according to the engine, road surface, excitation frequency characteristics of each transmission system and the frequency avoidance principle of the IBC. min ~f max .

[0020] Preferably, the value range of A is 3 to 5.

[0021] Preferably, the value range of B is 3-5.

[0022] In some optional embodiments of the present invention, the permissible vibration intensity K i According to the frequency-intensity table, the steps of establishing the frequency-intensity table include:

[0023] The adjustable frequency range of IBC is divided into N levels. According to the subjective evaluation results of the brake pedal vibration of the actual vehicle and combined with the vibration perception curve, the permissible vibration intensity is determined for the N levels and drawn into a frequency-intensity table.

[0024] In some optional embodiments of the present invention, it is determined based on the pedal position or pedal force signal that when the pedal is in a depressed state, the current vibration frequency f and vibration intensity K of the brake pedal are collected.

[0025] In some optional embodiments of the present invention, the method further comprises the following steps:

[0026] Set the vibration collection judgment time condition. If the vibration intensity K collected for 30 consecutive seconds is greater than K i , then the modal adjustment action is executed.

[0027] In some optional embodiments of the present invention, after the adjustment is completed, the vibration intensity K' of the brake pedal is re-collected and compared with the permissible vibration intensity K i In contrast, when K≤K i , confirm the accuracy of the position of the auxiliary support points.

[0028] In a second aspect, the present invention provides an automatic adjustment device for an IBC installation mode in a complete vehicle state, the device comprising:

[0029] A base, fixed to the vehicle body component;

[0030] A slider, used to assist in supporting the IBC, the slider being slidably connected to the base;

[0031] A driving component, used to drive the slider to slide along the base so as to adjust the position of the auxiliary support point of the IBC driving motor;

[0032] The control unit is used to control the driving component to drive the slider to move according to the method described in the first aspect, and automatically adjust the position of the auxiliary support point of the IBC driving motor.

[0033] In some optional embodiments of the present invention, the slider is provided with an arc surface adapted to the outer wall of the IBC motor, and the slider provides normal auxiliary support to the cylindrical surface of the IBC motor through the arc surface.

[0034] In some optional embodiments of the present invention, the surface of the arc surface is provided with an elastic block having the same shape as the arc surface.

[0035] In some optional embodiments of the present invention, a dovetail groove is provided on the base, and a limiting sliding portion adapted to the limiting groove is provided on the slider; the base and the slider are constrained by a dovetail groove slideway so that the slider can only move along the length direction of the dovetail groove.

[0036] In some optional embodiments of the present invention, the driving component includes a motor electrically connected to the control unit and an adjusting rod rotatably connected to the base; one end of the adjusting rod is connected to the motor driving part, and the other end is threadedly connected to the slider; the motor drives the adjusting rod to rotate forward or reverse according to the signal of the control unit, driving the slider to move up and down.

[0037] The beneficial effects of the present invention are:

[0038] The present invention realizes real-time dynamic adjustment of the IBC installation mode by adding an adjustable auxiliary support device at the IBC position and combining vibration detection and automatic control strategies, effectively avoiding resonance between the IBC and other excitation sources of the whole vehicle, and has low implementation cost and strong versatility.

[0039] The present invention can completely and actively avoid the vibration problem of vehicle-related parts caused by the resonance between the installation mode of the integrated brake controller and the excitation source of new energy vehicles. The present invention has strong feasibility, simple structure, high reliability and low cost, and has the potential for new technology exploration and application of current new energy vehicle active control.

[0040] 1. The IBC installation mode automatic adjustment method and device provided by the present invention can effectively improve the vehicle installation mode of the IBC by adding an adjustable normal auxiliary support structure to the end of the IBC motor, avoid resonance with excitation sources such as the engine, road surface, and transmission system, and thus improve the NVH performance of the vehicle.

[0041] 2. The present invention realizes real-time dynamic adjustment of the IBC installation mode by adding an adjustable auxiliary support device at the end of the IBC drive motor and combining vibration detection and automatic control strategies, effectively avoiding resonance between the IBC and other excitation sources of the vehicle, and solving the technical problem in the prior art that the IBC installation mode is fixed and difficult to adapt to different working conditions.

[0042] 3. The auxiliary support device of the present invention has a simple structure. Through the cooperation of the dovetail groove guide structure and the threaded adjustment mechanism, the IBC installation mode can be continuously adjusted within the range of 0 to 6.3 times, with a wide adjustment range and strong adaptability.

[0043] 4. The automatic adjustment method of the present invention is based on real-time monitoring of pedal vibration frequency and vibration intensity, combined with a preset frequency-intensity correspondence, to adaptively determine the optimal support position, with a reasonable control strategy, timely response and high reliability.

[0044] 5. The present invention adopts a design of an arc-shaped support surface with an elastic block, which can be well matched with the IBC motor housing, provide a stable supporting force, and avoid stress concentration, thereby ensuring the reliability of the supporting structure.

[0045] 6. The automatic adjustment device of the present invention adopts a motor drive mode, combined with the vibration collection judgment time setting, which can realize automatic and accurate adjustment of the support position, thereby improving the practicality and reliability of the system.

[0046] 7. Compared with the solution in the prior art that increases the installation rigidity of the IBC by adding a bracket, the present invention does not require modification of the original installation structure of the IBC assembly, nor does it involve adjustments to the supplier's production line. It has low implementation costs, strong versatility, and can be widely used in different vehicle models. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0048] Figure 1 It is a simplified mechanical schematic diagram of the installation method of the IBC assembly in the prior art;

[0049] Figure 2 A schematic structural diagram of an automatic adjustment device for an IBC installation mode in a complete vehicle state provided by an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the state of the automatic adjustment device of the present invention. Figure 1 , the slider is close to the upper end of the IBC drive motor body;

[0051] Figure 4 yes Figure 3 Simplified schematic diagram of mechanics under the state;

[0052] Figure 5 This is a schematic diagram of the state of the automatic adjustment device of the present invention. Figure 2 , the slider is close to the lower end of the IBC drive motor body, the motor is not shown in the figure;

[0053] Figure 6 yes Figure 5 Simplified schematic diagram of mechanics under the state;

[0054] In the figure: 1. base; 2. slider; 3. elastic block; 4. adjusting rod; 5. motor. DETAILED DESCRIPTION

[0055] The technical solution of the present invention (including the preferred technical solution) is further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Integrated brake controller (IBC): It mainly consists of four parts: a fluid storage tank, a hydraulic control valve body, a pedal force input mechanism, and a motor transmission mechanism. It replaces the electronic stability control system with an integrated unit, replacing the entire vehicle braking system composed of many subsystems such as the electronic stability control system, vacuum booster, and related wiring harnesses, sensors, switches, electronic controllers, and vacuum pumps in traditional fuel vehicles, reducing the weight by 25% to 30%.

[0057] Installation stiffness: The ability of components to resist deformation under external forces after they are installed and fixed. Stiffness = force / deformation displacement, unit N / mm.

[0058] Vehicle status: The boundary conditions of a vehicle that is ready for driving after being assembled from the body, chassis, electronic control, accessories and other systems.

[0059] Installation mode: The natural vibration characteristics of components after they are installed and fixed to the surrounding parts through fastening bolts, clips, hinges and other connectors, unit: Hz.

[0060] The initial installation method of the IBC assembly on the vehicle is a cantilever beam structure, and its simplified mechanical schematic diagram is as follows: Figure 1 As shown. The main mass m of the assembly is concentrated at the end of the cantilever. Under this installation method, the upper limit of its natural frequency is

[0061]

[0062] Therefore, without changing the stress state, it is difficult to significantly improve the IBC assembly installation mode by simply increasing the IBC installation point dynamic stiffness. In the formula, E is the elastic modulus of the beam manufacturing material, and I is the moment of inertia of the beam section. Both are inherent properties of the beam and can be considered as unchangeable characteristic parameters in the simplified IBC model of this example.

[0063] Example 1

[0064] like Figure 2 As shown, this embodiment provides an automatic adjustment device for the IBC installation mode in a complete vehicle state, including a base 1, a slider 2, an elastic block 3, a driving component and a control unit.

[0065] The base 1 is fixedly connected to the front wall of the vehicle body by bolts. A guide groove with a dovetail cross section is provided on the base 1.

[0066] The lower part of the slider 2 is provided with a limit sliding part adapted to the dovetail groove, and the upper part is provided with an arc-shaped support surface adapted to the IBC drive motor housing, and the curvature radius of the arc-shaped support surface is the same as the cylindrical radius of the motor housing. The slider 2 is embedded in the guide groove of the dovetail groove base 1 through the limit sliding part, and can slide back and forth along the length direction of the guide groove.

[0067] In some embodiments of the present invention, the purpose of the slider 2 is to increase the overall support stiffness of the IBC, so the support position is not limited to the IBC drive motor. If the IBC valve body structure and space permit, the slider 2 supporting the valve body can also achieve a similar effect.

[0068] The shape of the elastic block 3 is consistent with the arc-shaped supporting surface of the slider 2, and is fixed to the arc-shaped supporting surface of the slider 2 by adhesive, and is used to buffer the contact between the slider 2 and the IBC drive motor housing.

[0069] In some embodiments of the present invention, the elastic block 3 is a rubber block, which can be fixed to the slider 2 by an adhesive, or fixed to the slider 2 by means of fastening bolts, a convex-concave matching structure, or the like.

[0070] The elastic block 3 can: 1. increase the IBC. In some embodiments of the present invention, the contact area between the IBC drive motor and the slider 2 is increased to make the overall structure of the IBC more stable; 2. reduce shock to prevent the vibration of the IBC body from being transmitted to the vehicle body through the bracket; 3. protect the IBC components. When the slider 2 is sliding, the dry friction between the rigid parts is more likely to cause wear.

[0071] The driving component includes an adjusting rod 4 and a motor 5 .

[0072] The adjusting rod 4 is rotatably connected to the base 1, and its position remains unchanged relative to the base 1. One end of the adjusting rod 4 is connected to the driving part of the motor 5, and the other end is threadedly connected to the slider 2; the motor 5 is electrically connected to the control unit, and drives the adjusting rod 4 to rotate forward or reverse according to the signal of the control unit, thereby driving the slider 2 to move up and down through thread transmission, thereby adjusting the contact position between the slider 2 and the IBC driving motor housing.

[0073] The control unit receives the pedal position sensor signal and the pedal vibration sensor signal, and activates the controller when judging that the pedal is in the stepped state through the pedal position and force sensor signals. The pedal vibration sensor signal is collected, and the table is compared to judge whether the IBC installation mode needs to be adjusted. The control unit controls the driving component to drive the slider displacement according to the method described in Example 2, and automatically adjusts the position of the IBC auxiliary support point.

[0074] The control unit controls the movement of the slider 2 through the driving component, adjusts the position of the slider 2, and thus adjusts the support stiffness of the slider 2 to the IBC, so that the installation stiffness of the IBC vehicle meets the target requirements.

[0075] In some embodiments of the present invention, the motor 5 is a stepper motor.

[0076] Example 2

[0077] This embodiment provides a method for automatically adjusting the installation mode of an integrated brake controller in a complete vehicle state, comprising the following steps:

[0078] Determine the adjustable frequency range and vibration intensity standard of the IBC installation mode:

[0079] According to the characteristics of the vehicle engine operating frequency range, road excitation frequency range, transmission system excitation frequency range, and the principle that IBC needs to avoid certain frequencies above and below these excitation sources, the adjustable frequency range of the IBC installation mode is determined to be f min ~f max .

[0080] The adjustable frequency range of IBC is divided into N levels. According to the subjective evaluation results of the brake pedal vibration of the actual vehicle and combined with the vibration perception curve, the permissible vibration intensity is formulated for the N levels and drawn into a frequency-intensity table. The frequency-intensity table is shown in Table 1.

[0081] Table 1

[0082] Vibration frequency / Hz <![CDATA[f min ]]> … <![CDATA[f i ]]> … <![CDATA[f max ]]> Vibration intensity / dB <![CDATA[K 1 ]]> … <![CDATA[K i ]]> … <![CDATA[K n ]]>

[0083] Real-time monitoring of pedal vibration status:

[0084] The pedal state is detected by the pedal position sensor. When it is detected that the pedal is in the stepped state, the vibration sensor is started to collect the vibration frequency f and vibration intensity K of the pedal.

[0085] Determine whether adjustment is needed:

[0086] Check the frequency-intensity table to obtain the permitted vibration intensity K corresponding to the current vibration frequency f i , the measured vibration intensity K and K i For comparison, when K>K i , the target installation mode is set according to the current vibration frequency f, and the adjustment direction and adjustment stroke of the auxiliary support point position of the IBC drive motor are determined according to the current vibration frequency f.

[0087] In some embodiments of the present invention, if the K collected within 30 consecutive seconds is greater than K i , it is determined that the IBC installation mode needs to be adjusted. This effectively prevents the device from frequently adjusting the IBC installation mode.

[0088] Determine the adjustment direction and target mode:

[0089] When f≤(2(f min +f max )) / 3, that is, the current IBC installation mode is relatively low, and f+A Hz is set as the IBC installation mode target;

[0090] When f>(2(f min +f max )) / 3, set fB Hz as the IBC installation modal target.

[0091] In some embodiments of the present invention, the value range of A is 3-5.

[0092] In some embodiments of the present invention, the value range of B is 3-5.

[0093] Perform adjustment actions:

[0094] According to the difference between the IBC installation mode target and the current mode, calculate the angle θ that the stepper motor needs to rotate:

[0095] When the mode needs to be lifted, the stepper motor is controlled to rotate an angle θ, driving the adjustment rod 4 to rotate, so that the slider 2 moves toward the upper end of the IBC drive motor;

[0096] When the mode needs to be lowered, the stepper motor is controlled to reverse the angle θ, driving the adjustment rod 4 to rotate, so that the slider 2 moves toward the lower end of the IBC drive motor.

[0097] like Figure 3 and Figure 4 As shown in the figure, the slider 2 is close to the upper end of the IBC drive motor body, and the elastic block 3 is in contact with a small area of ​​the motor cylinder. The slider 2 is close to the upper end of the IBC drive motor, and the contact area of ​​the elastic block 3 with the outer cylindrical surface of the motor is reduced. At the same time, the normal support force of the slider 2 on the motor cylindrical surface will also be reduced. The automatic adjustment device forms a hinge point support constraint on the IBC assembly, and the IBC assembly can rotate slightly around the contact area of ​​the elastic block 3. Under this installation method, the upper limit of its natural frequency is

[0098]

[0099] Compared with the installation method in the prior art, the present invention can achieve a change in the natural frequency of 0 to 4.3 times, which is equivalent to shortening the cantilever L to L / 2.

[0100] like Figure 5 and Figure 6As shown, the slider 2 is close to the end of the IBC drive motor body, and the elastic block 3 is in large-area contact with the motor cylinder. The elastic block 3 is compacted, generating a large support reaction force on the IBC assembly, forming a fixed rigid constraint similar to the IBC mounting surface. Under this installation method, the upper limit of the natural frequency is

[0101]

[0102] Compared with the installation method in the prior art, the natural frequency is increased by 6.3 times, which is equivalent to shortening the cantilever L to 2L / 5.

[0103] Verify the adjustment effect

[0104] After the adjustment is completed, the pedal vibration intensity K' is collected again. If K'≤K i , then the adjustment is confirmed to be successful; if K'>K i , then return to the step of determining the adjustment direction and target mode and re-execute the adjustment.

[0105] Locking support position

[0106] After successful adjustment, the stepper motor is controlled to lock and the U-shaped slider is locked. When the pedal release signal is detected, all vibration collection data are reset. When the vehicle shutdown signal is detected, the U-shaped slider is controlled to move to the uppermost position.

[0107] By adding the auxiliary support device and adjusting the IBC support position, dynamic adjustment of the IBC assembly installation mode within the range of 0 to 6.3 times can be achieved, and the adjustment method is simple and reliable.

[0108] The method and device for automatically adjusting the installation mode of the integrated brake controller in the whole vehicle state of the present invention improves the whole vehicle installation mode of the IBC by adding an auxiliary adjustable IBC support device on the basis of keeping the original installation mode of the IBC assembly unchanged, thereby avoiding resonance with excitation sources such as the engine, road surface, and transmission system. The auxiliary support bracket has a simple structure, is easy to operate, and has a wide adjustable range of installation mode, and can be widely used in different vehicle models and different IBC assemblies. The present invention pioneered a method and control device for automatically adjusting the installation mode of the IBC in the whole vehicle state, which can completely and actively avoid the vehicle shaking problem caused by the resonance of the IBC installation mode of new energy vehicles. It has strong feasibility, simple structure, high reliability, and low cost, and has the potential for new technology exploration and application of active control of current new energy vehicles.

[0109] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A method for automatically adjusting the IBC installation mode in a complete vehicle state, characterized in that: include: Collect the current vibration frequency f and vibration intensity K of the brake pedal; Compare the current vibration intensity K with the corresponding permissible vibration intensity K at the current vibration frequency f i ; When K>K i , set the target installation mode according to the current vibration frequency f, and determine the adjustment direction and adjustment stroke of the IBC support point position according to the current vibration frequency f.

2. The method for automatically adjusting the IBC installation mode in the vehicle state according to claim 1 is characterized by: The method further comprises: Determine the frequency range f over which the IBC can be adjusted min ~f max ; When f≤(2(f min +f max )) / 3, f+A Hz is set as the IBC installation modal target; When f>(2(f min +f max )) / 3, set fB Hz as the IBC installation modal target.

3. The method for automatically adjusting the IBC installation mode in the vehicle state according to claim 2, characterized in that: The adjustable frequency range f of IBC is determined according to the excitation frequency characteristics of the engine, road surface, and each transmission system and the frequency avoidance principle of IBC. min ~f max .

4. The method for automatically adjusting the IBC installation mode in the vehicle state according to claim 2, characterized in that: The value range of A is 3 to 5; the value range of B is 3 to 5.

5. The method for automatically adjusting the IBC installation mode in the vehicle state according to claim 1 is characterized in that: The permissible vibration intensity K i According to the frequency-intensity table; The steps of establishing the frequency-intensity table include: The adjustable frequency range of IBC is divided into N levels. According to the subjective evaluation results of the brake pedal vibration of the actual vehicle and combined with the vibration perception curve, the permissible vibration intensity is determined for the N levels and drawn into a frequency-intensity table.

6. The method for automatically adjusting the IBC installation mode in the vehicle state according to any one of claims 1 to 5, characterized in that: According to the pedal position or pedal force signal, it is determined that when the pedal is in the depressed state, and the current vibration frequency f and vibration intensity K of the brake pedal are collected.

7. The method for automatically adjusting the IBC installation mode in a complete vehicle state according to any one of claim 6, characterized in that: After the adjustment is completed, the vibration intensity K' of the brake pedal is collected again and compared with the permissible vibration intensity K i In contrast, when K≤K i , confirm the accuracy of the position of the auxiliary support points.

8. An automatic adjustment device for the IBC installation mode in the vehicle state, characterized in that: The device comprises: A base, fixed to the vehicle body component; A slider, used to assist in supporting the IBC, the slider being slidably connected to the base; A driving component, used to drive the slider to slide along the base so as to adjust the position of the auxiliary support point of the IBC; A control unit is used to control the displacement of the slider by the driving component according to the method described in any one of claims 1 to 7, and automatically adjust the position of the auxiliary support point of the IBC driving motor.

9. The automatic adjustment device for the IBC installation mode in the vehicle state according to claim 8, characterized in that: The slider is provided with an arc surface adapted to the outer wall of the IBC, and the slider provides normal auxiliary support to the IBC through the arc surface; the surface of the arc surface is provided with an elastic block with the same shape as the arc surface.

10. The automatic adjustment device for the IBC installation mode in the vehicle state according to claim 8, characterized in that: The base is provided with a dovetail groove, and the slider is provided with a limiting sliding part adapted to the limiting groove; the base and the slider are constrained by the dovetail groove slideway, so that the slider can only move along the length direction of the dovetail groove.

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