CN116620409A - Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle - Google Patents

Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle Download PDF

Info

Publication number
CN116620409A
CN116620409A CN202310190866.2A CN202310190866A CN116620409A CN 116620409 A CN116620409 A CN 116620409A CN 202310190866 A CN202310190866 A CN 202310190866A CN 116620409 A CN116620409 A CN 116620409A
Authority
CN
China
Prior art keywords
suspension
assembly
beam main
main body
auxiliary frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310190866.2A
Other languages
Chinese (zh)
Inventor
林俊
付斌
翟润国
陈子轩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lantu Automobile Technology Co Ltd
Original Assignee
Lantu Automobile Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lantu Automobile Technology Co Ltd filed Critical Lantu Automobile Technology Co Ltd
Priority to CN202310190866.2A priority Critical patent/CN116620409A/en
Publication of CN116620409A publication Critical patent/CN116620409A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The application relates to a front auxiliary frame suspension system, a power assembly and a vehicle taking various vehicle types into consideration, which comprises the following components: the front auxiliary frame comprises a rear cross beam main body and front longitudinal beam main bodies symmetrically arranged on the left side and the right side of the rear cross beam main body, and the front ends of the two front longitudinal beam main bodies are connected with the front cross beam main body; the suspension assembly comprises a rear suspension assembly which is arranged at the bottom of the rear cross beam main body and used for connecting an electric driving assembly or a range-extending power assembly and/or a front suspension assembly which is arranged at the top of the front cross beam main body and used for connecting the electric driving assembly; when the front suspension assembly is connected with the front cross beam main body, the front auxiliary frame and the suspension assembly form a pure electric front auxiliary frame suspension system; when the front beam main body is not provided with the front suspension assembly, the front auxiliary frame and the suspension assembly form a range-extending front auxiliary frame suspension system. The front auxiliary frame suspension system can realize the installation and fixation of the electric drive assembly or the range-extending power assembly, so that the universality of the front auxiliary frame can be realized, and the cost and the development cost are saved.

Description

Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle
Technical Field
The application relates to the technical field of front auxiliary frames of new energy automobiles, in particular to a front auxiliary frame suspension system taking various automobile types into consideration, a power assembly and a vehicle.
Background
The new energy automobile power forms have a plurality of types, but one platform has few types, and if one type of automobile adopts two types of power forms (such as pure electric automobile and increase Cheng Chexing), the arrangement of the pure electric automobile motor suspension system not only needs to consider the performance requirement of the automobile, but also has the convenience and feasibility of the arrangement of the other type of power.
At present, the power of new energy vehicles tends to be high in power and torque, the torsion resistance requirement on motor suspension is extremely high, the traditional solution is to increase the suspension rigidity to inhibit the torsion of a motor assembly, but the vibration isolation performance of a suspension system is sacrificed, and some NVH problems are caused in the motor operation process.
Disclosure of Invention
The embodiment of the application provides a front auxiliary frame suspension system, a power assembly and a vehicle which are compatible with various vehicle types, so as to solve the problems that the front auxiliary frame suspension system in the related art is difficult to compatible with the arrangement of two power forms and cannot realize the universalization and the platfonn of the front auxiliary frame.
The first aspect of the embodiment of the application provides a front auxiliary frame suspension system considering various vehicle types, which comprises:
the front auxiliary frame comprises a rear cross beam main body and front longitudinal beam main bodies symmetrically arranged on the left side and the right side of the rear cross beam main body, and the front ends of the two front longitudinal beam main bodies are connected with the front cross beam main bodies;
the suspension assembly comprises a rear suspension assembly which is arranged at the bottom of the rear cross beam main body and used for connecting an electric driving assembly or a range-extending power assembly and/or a front suspension assembly which is arranged at the top of the front cross beam main body and used for connecting the electric driving assembly;
when the front suspension assembly is connected with the front cross beam main body, the front auxiliary frame and the suspension assembly form a pure electric front auxiliary frame suspension system; when the front beam main body is not provided with the front suspension assembly, the front auxiliary frame and the suspension assembly form a range-extending front auxiliary frame suspension system.
The pure electric front auxiliary frame suspension system of the front auxiliary frame suspension system adopts a three-point centroid layout scheme, the front suspension assembly is connected with an electric driving assembly and a front beam main body in front of the electric driving assembly, and the other rear suspension assembly is connected with the electric driving assembly and a rear beam main body behind the electric driving assembly.
If the vehicle type adopts the range-extending power assembly, the front suspension assembly on the front beam main body can be canceled, and the rear suspension assembly at the bottom of the rear beam main body can be reserved for mounting and fixing the range-extending power assembly, so that the universality of the front auxiliary frame can be realized, and the cost and the development cost can be saved.
Simultaneously, the front suspension assembly is arranged at the top of the front cross beam main body, the rear suspension assembly is arranged at the bottom of the rear cross beam main body, the torsion resistance of the front auxiliary frame suspension system is improved, the rigidity of each suspension can be properly reduced, and the vibration isolation performance of the suspension system is improved.
In some embodiments: the bottom of the rear cross beam main body is provided with a rear suspension mounting seat connected with the rear suspension assembly, and the rear suspension mounting seat is positioned in the middle of the rear cross beam main body;
the front suspension assembly comprises a left front suspension assembly and a right front suspension assembly, and a left front suspension installation seat and a right front suspension installation seat which are connected with the left front suspension assembly and the right front suspension assembly are respectively arranged at two ends of the front cross beam main body.
In some embodiments: the rear suspension mounting seat, the left front suspension mounting seat and the right front suspension mounting seat are all U-shaped structures, and the rear suspension mounting seat, the rear cross beam main body and the front longitudinal beam main body are integrally cast and formed by aluminum alloy materials;
the left front suspension mounting seat and the right front suspension mounting seat are symmetrically arranged on the front beam main body and are detachably connected with the front beam main body through welding or fastening pieces, and the left front suspension mounting seat, the right front suspension mounting seat and the front beam main body are all made of aluminum alloy materials in a processing and forming structure.
In some embodiments: the rear suspension assembly, the left front suspension assembly and the right front suspension assembly are respectively provided with a suspension bracket and a suspension bushing positioned at one end of the suspension bracket, mounting holes connected with the front auxiliary frame are formed in the suspension bushing, and the axis of each mounting hole is parallel to the width direction of the front auxiliary frame.
In some embodiments: the other end of the suspension bracket is provided with a plurality of fasteners which are used for being detachably and fixedly connected with the electric drive assembly or the range-extending power assembly, and a screw rod which is detachably connected with the front auxiliary frame penetrates into the suspension bushing.
In some embodiments: the suspension support one end is equipped with the bush accommodation hole that holds the bush, the bush is located the bush accommodation hole and vulcanizes into an organic wholely with the suspension support, the length of bush is greater than the length of bush accommodation hole, the both ends butt of bush is in on the lateral wall that left front suspension mount pad, right front suspension mount pad or rear suspension mount pad are connected.
A second aspect of an embodiment of the present application provides a powertrain, comprising: the front subframe suspension system of any one of the above embodiments, and
and the electric driving assembly is positioned in the front auxiliary frame and connected with the front auxiliary frame through the front suspension assembly and the rear suspension assembly.
A third aspect of an embodiment of the present application provides a powertrain, comprising: the front subframe suspension system of any one of the above embodiments, and
the extended range power assembly is positioned in the front auxiliary frame and connected with the front auxiliary frame through the rear suspension assembly;
the range-extending power assembly is also provided with a left upper suspension assembly and a right upper suspension assembly which are connected with the vehicle body.
In some embodiments: the range extender comprises a range extender and a driving motor connected with the range extender, wherein the range extender is fixedly connected with a longitudinal beam of a vehicle body through a left upper suspension assembly and a right upper suspension assembly, the driving motor is connected with a reduction gearbox, and the reduction gearbox is connected with a front auxiliary frame through a rear suspension assembly.
A fourth aspect of an embodiment of the present application provides a vehicle comprising a powertrain as described in any one of the embodiments above, and
and the power assembly is arranged in a cabin of the vehicle body.
The technical scheme provided by the application has the beneficial effects that:
the embodiment of the application provides a front auxiliary frame suspension system, a power assembly and a vehicle for various vehicle types, and the front auxiliary frame suspension system is provided with a front auxiliary frame, wherein the front auxiliary frame comprises a rear cross beam main body and front longitudinal beam main bodies symmetrically arranged on the left side and the right side of the rear cross beam main body, and the front ends of the two front longitudinal beam main bodies are connected with the front cross beam main bodies; the suspension assembly comprises a rear suspension assembly which is arranged at the bottom of the rear cross beam main body and used for connecting an electric driving assembly or a range-extending power assembly and/or a front suspension assembly which is arranged at the top of the front cross beam main body and used for connecting the electric driving assembly; when the front suspension assembly is connected with the front cross beam main body, the front auxiliary frame and the suspension assembly form a pure electric front auxiliary frame suspension system; when the front beam main body is not provided with the front suspension assembly, the front auxiliary frame and the suspension assembly form a range-extending front auxiliary frame suspension system.
Therefore, the pure electric front auxiliary frame suspension system of the front auxiliary frame suspension system adopts a three-point centroid layout scheme, the front suspension assembly is connected with the electric driving assembly and the front beam main body in front of the electric driving assembly, and the other rear suspension assembly is connected with the electric driving assembly and the rear beam main body behind the electric driving assembly. If the vehicle type adopts the range-extending power assembly, the front suspension assembly on the front beam main body can be canceled, and the rear suspension assembly at the bottom of the rear beam main body can be reserved for mounting and fixing the range-extending power assembly, so that the universality of the front auxiliary frame can be realized, and the cost and the development cost can be saved. Simultaneously, the front suspension assembly is arranged at the top of the front cross beam main body, the rear suspension assembly is arranged at the bottom of the rear cross beam main body, the torsion resistance of the front auxiliary frame suspension system is improved, the rigidity of each suspension can be properly reduced, and the vibration isolation performance of the suspension system is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of a structure of an embodiment of the present application;
FIG. 2 is a bottom view of an embodiment of the present application;
fig. 3 is a schematic structural diagram of a front subframe according to an embodiment of the present application.
Reference numerals:
1. a front subframe; 2. a front suspension assembly; 3. a rear suspension assembly; 4. an electric drive assembly; 11. a rear cross member main body; 12. a front side member main body; 13. a front cross member main body; 14. a rear suspension mount; 15. a left front suspension mounting seat; 16. a right front suspension mounting seat; 21. a left front suspension assembly; 22. and a right front suspension assembly.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a front auxiliary frame suspension system, a power assembly and a vehicle which are compatible with various vehicle types, and can solve the problems that the front auxiliary frame suspension system in the related art is difficult to compatible with the arrangement of two power forms and cannot realize the universalization and the platformization of a front auxiliary frame.
Referring to fig. 1 to 3, a first aspect of the embodiment of the present application provides a front subframe suspension system compatible with multiple vehicle types, including:
the front subframe 1 includes a rear cross member body 11, and front side member bodies 12 symmetrically disposed on both left and right sides of the rear cross member body, and front cross member bodies 13 are connected to front ends of the two front side member bodies 12.
The suspension assembly comprises a rear suspension assembly 3 which is arranged at the bottom of a rear beam main body 11 and used for connecting an electric driving component 4 or a range-increasing power component, or a front suspension assembly 2 which is arranged at the top of a front beam main body 13 and used for connecting the electric driving component 4.
When the front suspension assembly 2 is connected with the front cross beam main body 13, the front auxiliary frame 1 and the suspension assembly form a pure electric front auxiliary frame suspension system; when the front beam main body 13 is not provided with the front suspension assembly 2, the front subframe 1 and the suspension assembly form a range-extending front subframe suspension system.
The pure electric front auxiliary frame suspension system of the embodiment of the application adopts a three-point centroid layout scheme, the front suspension assembly 2 is connected with the electric driving assembly 4 and the front cross beam main body 13 in front of the electric driving assembly 4, and the other rear suspension assembly 3 is connected with the electric driving assembly 4 and the rear cross beam main body 11 behind the electric driving assembly 4.
If the vehicle adopts the range-extending power assembly, the front suspension assembly 2 on the front beam main body 13 can be omitted, and the rear suspension assembly 3 at the bottom of the rear beam main body 11 can be reserved for mounting and fixing the range-extending power assembly, so that the universality of the front auxiliary frame can be realized, and the cost and development cost can be saved.
Simultaneously, the front suspension assembly 2 is arranged at the top of the front beam main body 13, the rear suspension assembly 3 is arranged at the bottom of the rear beam main body 11, and when the electric drive assembly 4 is started, the torsion moment of the electric drive assembly 4 acts on the front auxiliary frame 1 towards the front auxiliary frame 1, so that the torsion resistance of the front auxiliary frame suspension system is improved, the rigidity of each suspension can be properly reduced, and the vibration isolation performance of the suspension system is improved.
In some alternative embodiments: referring to fig. 1 to 3, the embodiment of the present application provides a front subframe suspension system compatible with various vehicle types, wherein a rear suspension mount 14 connected to a rear suspension assembly 3 is provided at the bottom of a rear cross member body 11 of the front subframe suspension system, and the rear suspension mount 14 is located at a middle position of the rear cross member body 11.
The front suspension assembly 2 comprises a left front suspension assembly 21 and a right front suspension assembly 22, and both ends of the front beam main body 13 are respectively provided with a left front suspension mounting seat 15 and a right front suspension mounting seat 16 which are connected with the left front suspension assembly 21 and the right front suspension assembly 22.
The bottom of the rear beam main body 11 is provided with a rear suspension mounting seat 14 connected with the rear suspension assembly 3, and two ends of the front beam main body 13 are respectively provided with a left front suspension mounting seat 15 and a right front suspension mounting seat 16 connected with a left front suspension assembly 21 and a right front suspension assembly 22.
The rear suspension mount 14, the left front suspension mount 15 and the right front suspension mount 16 are used to connect the rear suspension assembly 3, the left front suspension assembly 21 and the right front suspension assembly 22, respectively, to attenuate vibrations transmitted from the entire electric drive assembly 4 to the vehicle body end.
At this time, only three suspensions in total are needed to fix the electric drive assembly 4, the needed suspension quantity is small, the disassembly and the assembly are convenient, the cost is low, and the occupied space is compact because the integration level is high.
In some alternative embodiments: referring to fig. 1 to 3, the embodiment of the present application provides a front subframe suspension system that is compatible with multiple vehicle types, in which the rear suspension mount 14, the left front suspension mount 15 and the right front suspension mount 16 of the front subframe suspension system are all in a "U" structure, and the rear suspension mount 14, the rear cross member body 11 and the front side member body 12 are integrally cast and formed from an aluminum alloy material.
The left front suspension mounting seat 15 and the right front suspension mounting seat 16 are symmetrically arranged on the front beam main body 13 and are detachably connected with the front beam main body 13 through welding or fastening pieces, and the left front suspension mounting seat 15, the right front suspension mounting seat 16 and the front beam main body 13 are all made of aluminum alloy material in a processing and forming structure.
The rear suspension mounting seat 14, the left front suspension mounting seat 15 and the right front suspension mounting seat 16 are all U-shaped structures, the rear suspension mounting seat 14, the rear cross beam main body 11 and the front longitudinal beam main body 12 are integrally cast and formed by aluminum alloy materials, the whole weight is light, rust corrosion risks are avoided, and the quality of an automobile chassis is improved.
The left front suspension mounting seat 15 and the right front suspension mounting seat 16 are detachably connected with the front beam main body 13 through welding or fastening pieces, when the left front suspension mounting seat 15 and the right front suspension mounting seat 16 are not used, the left front suspension mounting seat 15 and the right front suspension mounting seat 16 are not required to be welded or fixed on the front beam main body 13, and the rear suspension mounting seat 14 is reserved for mounting and fixing the extended range power assembly suspension, so that the production cost of the front auxiliary frame 1 is reduced, and the light weight of the front auxiliary frame 1 is realized.
In some alternative embodiments: referring to fig. 1 to 2, the embodiment of the present application provides a front subframe suspension system compatible with various vehicle types, in which a rear suspension assembly 3, a left front suspension assembly 21 and a right front suspension assembly 22 of the front subframe suspension system are provided with suspension brackets, and a suspension bushing at one end of the suspension brackets, in which a mounting hole is provided for connecting with a front subframe 1, and an axis of the mounting hole is parallel to a width direction of the front subframe.
According to the embodiment of the application, the three suspension bushings are arranged in the same direction, the axial direction of the suspension bushing is parallel to the Y direction of the whole vehicle, the radial directions of the suspension bushings are the X direction and the Z direction of the whole vehicle, and the torsional directions of the electric drive assembly 4 or the range-extending power assembly are mainly the X direction and the Z direction and are consistent with the arrangement directions of the three suspension bushings, so that the suspension system can provide enough torsional rigidity, but the rigidity distributed on each suspension can be properly reduced, thus better vibration isolation performance can be provided, and the radial static rigidity of the three suspension bushings of the suspension system can be lower than 300N/mm.
In some alternative embodiments: referring to fig. 1 to 2, the embodiment of the application provides a front subframe suspension system considering various vehicle types, wherein the other end of a suspension bracket of the front subframe suspension system is provided with a plurality of fasteners for detachably and fixedly connecting with an electric driving assembly 4 or a range-extending power assembly, and a screw rod detachably connected with a rear suspension mounting seat 14, a left front suspension mounting seat 15 or a right front suspension mounting seat 16 of a front subframe 1 is penetrated into a suspension bushing.
The suspension bracket is characterized in that one end of the suspension bracket is provided with a bushing accommodating hole for accommodating the bushing, the bushing is positioned in the bushing accommodating hole and vulcanized into a whole with the suspension bracket, the length of the bushing is larger than that of the bushing accommodating hole, and two ends of the bushing are abutted to the side wall connected with the left front suspension mounting seat, the right front suspension mounting seat or the rear suspension mounting seat so as to realize vibration reduction of the bushing in the Y-axis direction.
Referring to fig. 1 and 2, a second aspect of an embodiment of the present application provides a powertrain, comprising: the front subframe suspension system according to any of the above embodiments, and an electric drive assembly 4, which is located in the front subframe 1 and is connected to the front subframe 1 through a front suspension assembly 2 and a rear suspension assembly 3, the electric drive assembly 4 comprising a drive motor and a decelerator connected to the drive motor.
When the left front suspension assembly 21 and the right front suspension assembly 22 of the front suspension assembly 2 are connected with the front beam main body 13 and the rear suspension assembly 3 is connected to the bottom of the rear beam main body 11, the front auxiliary frame 1 and the suspension assembly form a pure electric front auxiliary frame suspension system.
The pure electric front auxiliary frame suspension system of the power assembly adopts a three-point centroid layout scheme, the left front suspension assembly 21 and the right front suspension assembly 22 are connected with the electric driving assembly 4 and the front beam main body 13 in front of the electric driving assembly 4, and the other rear suspension assembly 3 is connected with the electric driving assembly 4 and the rear beam main body 11 behind the electric driving assembly 4.
Simultaneously, the left front suspension assembly 21 and the right front suspension assembly 22 are arranged at the top of the front beam main body 13, the rear suspension assembly 3 is arranged at the bottom of the rear beam main body 11, when the electric drive assembly 4 is started, the torsion moment of the electric drive assembly 4 acts on the front auxiliary frame 1 towards the front auxiliary frame 1, the torsion resistance of the front auxiliary frame suspension system is improved, the rigidity of each suspension can be properly reduced, and the vibration isolation performance of the suspension system is improved.
Referring to fig. 1 and 2, a third aspect of an embodiment of the present application provides a powertrain, comprising: the front subframe suspension system according to any of the above embodiments, and a range-extending power assembly (not shown) located in the front subframe 1 and connected to the rear cross member body 11 of the front subframe 1 through the rear suspension assembly 3; the range-extending power assembly is also provided with a left upper suspension assembly (not shown) and a right upper suspension assembly (not shown) which are used for being connected with the vehicle body.
The range extender power assembly comprises a range extender and a driving motor connected with the range extender, the range extender is fixedly connected with a longitudinal beam of the vehicle body through a left upper suspension assembly and a right upper suspension assembly, the driving motor is connected with a reduction gearbox, and the reduction gearbox is connected with the front auxiliary frame 1 through a rear suspension assembly 3.
The power assembly of the embodiment of the application is provided with a Cheng Dongli component on a front auxiliary frame suspension system, and the range-extending power component is positioned in a front auxiliary frame 1 and is connected with a rear cross beam main body 11 of the front auxiliary frame 1 through a rear suspension assembly 3; the range-extending power assembly is also provided with a left upper suspension assembly and a right upper suspension assembly which are connected with the vehicle body. The rear suspension assembly 3, the upper left suspension assembly and the upper right suspension assembly form a three-point suspension system to attenuate vibrations transmitted to the vehicle body end by the entire add Cheng Dongli component.
At this time, only need three in total to suspend and can fix range-extending power component, required suspension quantity is few, easy dismounting and with low costs, so occupation space is also compacter because the integrated level is high.
And the upper left suspension assembly and the upper right suspension assembly are connected with the range extender, and vibration generated by the range extender can be filtered out by the upper left suspension assembly and the upper right suspension assembly, so that the vibration is prevented from being transmitted to the vehicle body, and the riding comfort is improved. The reduction gearbox is connected with the front auxiliary frame 1 through the rear suspension assembly 3, and vibration generated by the reduction gearbox and the driving motor can be filtered out by the rear suspension assembly 3, so that the vibration is prevented from being transmitted to the front auxiliary frame 1, and riding comfort is further improved.
A fourth aspect of the present application provides a vehicle, including the powertrain of any one of the above embodiments, and a vehicle body, where the powertrain is disposed in a cabin of the vehicle body.
Principle of operation
The embodiment of the application provides a front auxiliary frame suspension system, a power assembly and a vehicle which give consideration to various vehicle types, and because the front auxiliary frame suspension system is provided with a front auxiliary frame 1, the front auxiliary frame 1 comprises a rear cross beam main body 11 and front longitudinal beam main bodies 12 which are symmetrically arranged on the left side and the right side of the rear cross beam main body 11, and the front ends of the two front longitudinal beam main bodies 12 are connected with a front cross beam main body 13; a suspension assembly including a rear suspension assembly 3 disposed at the bottom of the rear beam body 11 for connecting the electric drive assembly 4 or the range-extending power assembly and/or a front suspension assembly 2 disposed at the top of the front beam body 13 for connecting the electric drive assembly 4; when the front suspension assembly 2 is connected with the front cross beam main body 13, the front auxiliary frame 1 and the suspension assembly form a pure electric front auxiliary frame suspension system; when the front beam main body 13 is not provided with the front suspension assembly 2, the front subframe 1 and the suspension assembly form a range-extending front subframe suspension system.
Therefore, the pure electric front auxiliary frame suspension system of the front auxiliary frame suspension system adopts a three-point centroid layout scheme, the front suspension assembly 2 is connected with the electric driving assembly 4 and the front cross beam main body 13 in front of the electric driving assembly 4, and the other rear suspension assembly 3 is connected with the electric driving assembly 4 and the rear cross beam main body 11 behind the electric driving assembly 4. If the vehicle adopts the range-extending power assembly, the front suspension assembly 2 on the front beam main body 13 can be omitted, and the rear suspension assembly 3 at the bottom of the rear beam main body 11 can be reserved for mounting and fixing the range-extending power assembly, so that the universality of the front auxiliary frame 1 can be realized, and the cost and development cost can be saved. Simultaneously, the front suspension assembly 2 is arranged at the top of the front beam main body 13, the rear suspension assembly 3 is arranged at the bottom of the rear beam main body 11, the torsion resistance of the front auxiliary frame suspension system is improved, the rigidity of each suspension can be properly reduced, and the vibration isolation performance of the suspension system is improved.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A front subframe suspension system compatible with multiple vehicle types, comprising:
the front auxiliary frame (1), the front auxiliary frame (1) comprises a rear cross beam main body (11) and front longitudinal beam main bodies (12) symmetrically arranged on the left side and the right side of the rear cross beam main body (11), and front ends of the two front longitudinal beam main bodies (12) are connected with a front cross beam main body (13);
the suspension assembly comprises a rear suspension assembly (3) which is arranged at the bottom of the rear beam main body (11) and used for connecting an electric driving assembly (4) or a range-extending power assembly and/or a front suspension assembly (2) which is arranged at the top of the front beam main body (13) and used for connecting the electric driving assembly (4);
when the front suspension assembly (2) is connected with the front cross beam main body (13), the front auxiliary frame (1) and the suspension assembly form a pure electric front auxiliary frame suspension system; when the front beam main body (13) is not provided with the front suspension assembly (2), the front auxiliary frame (1) and the suspension assembly form a range-extending front auxiliary frame suspension system.
2. A front subframe suspension system compatible with multiple vehicle models as claimed in claim 1, wherein:
the bottom of the rear cross beam main body (11) is provided with a rear suspension mounting seat (14) connected with the rear suspension assembly (3), and the rear suspension mounting seat (14) is positioned in the middle of the rear cross beam main body (11);
the front suspension assembly (2) comprises a left front suspension assembly (21) and a right front suspension assembly (22), and two ends of the front cross beam main body (13) are respectively provided with a left front suspension installation seat (15) and a right front suspension installation seat (16) which are connected with the left front suspension assembly (21) and the right front suspension assembly (22).
3. A front subframe suspension system compatible with multiple vehicle models as claimed in claim 2, wherein:
the rear suspension mounting seat (14), the left front suspension mounting seat (15) and the right front suspension mounting seat (16) are all U-shaped structures, and the rear suspension mounting seat (14), the rear cross beam main body (11) and the front longitudinal beam main body (12) are integrally cast and formed by aluminum alloy materials;
the left front suspension mounting seat (15) and the right front suspension mounting seat (16) are symmetrically arranged on the front beam main body (13) and detachably connected with the front beam main body (13) through welding or fastening pieces, and the left front suspension mounting seat (15), the right front suspension mounting seat (16) and the front beam main body (13) are all of aluminum alloy material processing and forming structures.
4. A front subframe suspension system compatible with multiple vehicle models as claimed in claim 2, wherein:
the rear suspension assembly (3), the left front suspension assembly (21) and the right front suspension assembly (22) are respectively provided with a suspension bracket and a suspension bushing positioned at one end of the suspension bracket, mounting holes connected with the front auxiliary frame (1) are formed in the suspension bushing, and the axes of the mounting holes are parallel to the width direction of the front auxiliary frame (1).
5. A front subframe suspension system for multiple vehicle models as claimed in claim 4, wherein:
the other end of the suspension bracket is provided with a plurality of fasteners which are used for being detachably and fixedly connected with an electric driving assembly (4) or a range-extending power assembly, and a screw rod which is detachably connected with a front auxiliary frame (1) penetrates into the suspension bushing.
6. A front subframe suspension system for multiple vehicle models as claimed in claim 4, wherein:
the suspension support one end is equipped with the bush accommodation hole that holds the bush, the bush is located the bush accommodation hole and vulcanizes into an organic whole with the suspension support, the length of bush is greater than the length of bush accommodation hole, the both ends butt of bush is in on the lateral wall that left front suspension mount pad (15), right front suspension mount pad (16) or rear suspension mount pad (14) are connected.
7. A powertrain, comprising: the front subframe suspension system of any one of claims 1 to 6, and
the electric drive assembly (4) is positioned in the front auxiliary frame (1) and is connected with the front auxiliary frame (1) through the front suspension assembly (2) and the rear suspension assembly (3).
8. A powertrain, comprising: the front subframe suspension system of any one of claims 1 to 6, and
the extended range power assembly is positioned in the front auxiliary frame (1) and is connected with the front auxiliary frame (1) through the rear suspension assembly (3);
the range-extending power assembly is also provided with a left upper suspension assembly and a right upper suspension assembly which are connected with the vehicle body.
9. A power train as claimed in claim 8, wherein:
the range extender comprises a range extender and a driving motor connected with the range extender, the range extender is fixedly connected with a longitudinal beam of a vehicle body through a left upper suspension assembly and a right upper suspension assembly, the driving motor is connected with a reduction gearbox, and the reduction gearbox is connected with a front auxiliary frame (1) through a rear suspension assembly (3).
10. A vehicle comprising the powertrain of any one of claims 1 to 9, and
and the power assembly is arranged in a cabin of the vehicle body.
CN202310190866.2A 2023-03-02 2023-03-02 Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle Pending CN116620409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310190866.2A CN116620409A (en) 2023-03-02 2023-03-02 Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310190866.2A CN116620409A (en) 2023-03-02 2023-03-02 Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle

Publications (1)

Publication Number Publication Date
CN116620409A true CN116620409A (en) 2023-08-22

Family

ID=87608663

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310190866.2A Pending CN116620409A (en) 2023-03-02 2023-03-02 Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle

Country Status (1)

Country Link
CN (1) CN116620409A (en)

Similar Documents

Publication Publication Date Title
US9045170B2 (en) Rear-wheel drive, plug-in hybrid electric vehicle modular subframe assembly and method
CN1970329B (en) Vehicle body frame for a utility vehicle
JP7259667B2 (en) Vehicle mounting structure and vehicle mounting method for fuel cell stack
CN111216793A (en) Novel steel frame type front auxiliary frame
CN111634248A (en) Suspension structure and device for mounting parts of power assembly of electric automobile
CN110978977A (en) Motor assembly suspension structure and suspension system of pure electric vehicle
CN113184052B (en) Five-connecting-rod aluminum alloy rear auxiliary frame with rear wheel steering function
US11642953B2 (en) Mounting arrangement for a powertrain of a four-wheeled vehicle
CN212401351U (en) Auxiliary frame assembly and automobile
JP3354300B2 (en) Subframe structure in automobile
CN211000894U (en) Electric motor car power assembly strutting arrangement, sub vehicle frame assembly and car
CN110155178B (en) Full frame type electric vehicle suspension system
JP3354301B2 (en) Subframe structure in automobile
CN116620409A (en) Front auxiliary frame suspension system capable of achieving multiple vehicle types, power assembly and vehicle
JP5469898B2 (en) Body structure
CN211107698U (en) Rear auxiliary frame for extended-range automobile and automobile
JP3224222B2 (en) Car fuel tank support structure
JP2006123708A (en) Differential mount attaching mechanism for automobile
CN216994510U (en) New energy automobile front auxiliary frame
CN215153879U (en) Suspension system and electric vehicle
JP2003011680A (en) Supporting structure for radiator
CN218929575U (en) Automobile rear auxiliary frame
CN220374265U (en) Hydrogen fuel cell vehicle power assembly and hydrogen fuel cell vehicle
KR20130016509A (en) Structure of front subframe
CN216102375U (en) Electric automobile

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination