CN112874561A - Low-floor rubber wheel bogie based on hub motor - Google Patents
Low-floor rubber wheel bogie based on hub motor Download PDFInfo
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- CN112874561A CN112874561A CN201911201780.5A CN201911201780A CN112874561A CN 112874561 A CN112874561 A CN 112874561A CN 201911201780 A CN201911201780 A CN 201911201780A CN 112874561 A CN112874561 A CN 112874561A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/46—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors forming parts of wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention provides a low-floor rubber wheel bogie based on a hub motor, which comprises: the system comprises a hub motor assembly, an independent air suspension system, a rubber wheel, a rim, a disconnected steer-by-wire mechanism and a bogie chassis; the rubber wheel is mounted on the rim, an assembly of the rubber wheel and the rim forms a rubber wheel assembly, and the rubber wheel assembly is fixedly connected with the hub motor assembly; the hub motor assembly is connected with the independent air suspension system through a spherical hinge; the disconnected steer-by-wire mechanism is fixedly connected with the hub motor assembly and is connected to the bogie chassis through a rotating shaft; the independent air suspension system is connected to the bogie chassis by rubber ball glue.
Description
Technical Field
The invention relates to a bogie technology, in particular to a low-floor rubber wheel bogie based on a hub motor.
Background
The intelligent rail electric car is a novel urban rail vehicle with multiple sections of marshalling, full-axle steering and medium and large traffic volume, is used as an urban operation to facilitate getting on and off passengers, and is imperative in low-floor arrangement. In addition, the realization of medium and large volumes of traffic requires sufficient space in the train, i.e. a sufficient number of groups; meanwhile, enough power must be provided for realizing medium and large transportation volumes; the radius of the curve of the urban operation road is small, and the vehicle is required to have a full-axle steering function.
The existing platform of the smart rail electric car is of a three-section marshalling, six-shaft full steering and 12 multiplied by 4 driving form (power is arranged at two ends), and a low floor is not completely penetrated (the floor at a power bogie is a three-stage step). If marshalling needs to be added (i.e. the transportation capacity is increased) or the low-floor full-through requirement needs to be realized on the basis of the current platform, the existing bogie structure cannot meet the use requirement.
Therefore, a bogie capable of improving the power of the smart rail electric vehicle and realizing a full-through low-floor structure of the vehicle is needed.
Disclosure of Invention
The invention aims to provide a low-floor rubber wheel bogie of an intelligent rail electric car based on a hub motor, which can solve the problem of insufficient power of four or more sections of intelligent rail electric cars and can realize a full-through low-floor structure of a vehicle. Meanwhile, the bogie can meet the requirement of full-axle steering, and has small turning radius and flexible steering. In addition, the bogie can also improve the running stability of the intelligent rail electric car.
The invention provides a low-floor rubber wheel bogie based on a hub motor, which comprises:
the system comprises a hub motor assembly, an independent air suspension system, a rubber wheel, a rim, a disconnected steer-by-wire mechanism and a bogie chassis;
wherein:
the rubber wheel is arranged on the rim, the rubber wheel and an assembly body of the rim form a rubber wheel assembly, and the rubber wheel assembly is fixedly connected with the hub motor assembly;
the hub motor assembly is connected with the independent air suspension system through a spherical hinge;
the disconnected steer-by-wire mechanism is fixedly connected with the hub motor assembly and is connected to the bogie chassis through a rotating shaft;
the independent air suspension system is connected to the bogie chassis by rubber ball glue.
In one embodiment, the knuckle upper and lower ball pins of the in-wheel motor assembly are respectively and spherically hinged with the upper and lower cross arms of the independent air suspension system.
In one embodiment, the rubber wheel assembly is fixedly connected with the hub motor assembly through bolts.
In one embodiment, a knuckle arm of the break-away steer-by-wire mechanism is fixed to a knuckle of the in-wheel motor assembly by a bolt, and a steering rocker arm of the break-away steer-by-wire mechanism is connected to the bogie chassis through the rotating shaft.
In one embodiment, the in-wheel motor assembly comprises:
the device comprises a planetary reducer, a motor and a controller thereof, a drum brake and a steering knuckle;
the sun gear of the planetary reducer is used for power input, the planet carrier of the planetary reducer is used for power output to drive the tire, the gear ring is fixed on a stator rack of the motor, the sun gear is in splined connection with an output shaft of the motor, and a hub bearing is arranged between a rotating shaft of the planet carrier of the planetary reducer and the steering knuckle, so that the rotation between the tire and the steering knuckle is realized; a motor bearing is arranged between a rotor frame of the motor and the steering knuckle, and a stator frame of the motor is fixed on the steering knuckle, so that the rotation of a stator and a rotor of the motor is realized.
In one embodiment, the drum brake comprises:
a brake drum and brake shoe mechanism;
the brake drum is fixed on a rotor frame of the motor, the brake shoe mechanism is installed on the steering knuckle, and the planet carrier is braked by braking the motor rotor.
In one embodiment, the independent air suspension system comprises:
the device comprises an upper cross arm, a lower cross arm, a shock absorber, an air spring and a height valve assembly;
the upper end of the air spring is fixedly connected to the underframe through a bolt, and the lower end of the air spring is fixedly connected to the upper cross arm through a bolt;
the upper end of the shock absorber is flexibly connected to the underframe through rubber, and the lower end of the shock absorber is flexibly connected to the lower cross arm through rubber;
the height valve assembly is connected with the air spring pipeline and is used for controlling the air inflation or deflation of the air spring.
In one embodiment, the break-away steer-by-wire mechanism comprises:
a left tie rod, a right tie rod, a middle tie rod, a left steering rocker arm, a right steering rocker arm, a steering cylinder, a left knuckle arm, and a right knuckle arm;
wherein:
the left and right steering rocker arms are arranged on the underframe through a rotating shaft;
the left end and the right end of the middle transverse pull rod are respectively connected with the left steering rocker arm and the right steering rocker arm in a spherical hinge mode;
the left end and the right end of the left tie rod are respectively connected with the left steering knuckle arm and the left steering rocker arm in a spherical hinge mode;
the left end and the right end of the right transverse pull rod are respectively connected with the right steering knuckle arm and the right steering rocker arm in a spherical hinge mode;
the front end and the rear end of the steering oil cylinder are respectively connected with the right steering rocker arm and the bottom frame in a spherical hinge mode;
the left and right knuckle arms are respectively connected to the left and right knuckles of the hub motor assembly through bolts.
In one embodiment, the break-away steer-by-wire mechanism does not require mechanical transmission and is matched with the independent air suspension system, and single wheel bounce does not affect the steering of the other wheel.
In one embodiment, the break-away steer-by-wire mechanism has a minimum turn radius of 15m, the maximum turn angles of the inner and outer wheels being greater than 14.81 ° and 13.15 °, respectively.
The low-floor rubber wheel bogie based on the hub motor is suitable for the intelligent rail electric car and has the following beneficial technical effects:
firstly, the invention adopts the hub motor technology to realize all-wheel drive, solves the problem of insufficient power of four or more section intelligent rail electric vehicles, and meets the requirement of large transportation capacity in intelligent rails;
secondly, the invention adopts an independent suspension structure to realize a full-through low-floor structure of the vehicle, thereby facilitating passengers to get on and off and simultaneously improving the running stability of the intelligent track electric vehicle;
and thirdly, the invention adopts the break-off type steer-by-wire mechanism, realizes the full-axle steer-by-wire function, has small turning radius of the vehicle and flexible steering, and can adapt to various urban roads.
Drawings
The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. It is to be noted that the appended drawings are intended as examples of the claimed invention. In the drawings, like reference characters designate the same or similar elements.
FIG. 1 illustrates a wheel hub motor based rubber wheel truck according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an in-wheel motor assembly according to an embodiment of the present invention;
FIG. 3 illustrates a front view of an independent air suspension system according to an embodiment of the present invention;
FIG. 4 illustrates a top view of an independent air suspension system according to an embodiment of the present invention;
FIG. 5 shows a schematic diagram of a steering mechanism according to an embodiment of the invention;
fig. 6 shows a minimum turning radius schematic of a steering mechanism according to an embodiment of the invention.
Detailed Description
The detailed features and advantages of the present invention are described in detail in the detailed description which follows, and will be sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages of the present invention will be easily understood by those skilled in the art from the description, claims and drawings disclosed in the present specification.
The intelligent rail electric car is a novel urban rail vehicle with multiple sections of marshalling, full-axle steering and medium and large traffic volume, is used as an urban operation to facilitate getting on and off passengers, and is imperative in low-floor arrangement. In addition, the realization of medium and large volumes of traffic requires sufficient space in the train, i.e. a sufficient number of groups; meanwhile, enough power must be provided for realizing medium and large transportation volumes; the radius of the curve of the urban operation road is small, and the vehicle is required to have a full-axle steering function.
The existing platform of the smart rail electric car is of a three-section marshalling, six-shaft full steering and 12 multiplied by 4 driving form (power is arranged at two ends), and a low floor is not completely penetrated (the floor at a power bogie is a three-stage step). If marshalling needs to be added (i.e. the transportation capacity is increased) or the low-floor full-through requirement needs to be realized on the basis of the current platform, the existing bogie structure cannot meet the use requirement.
The invention provides a wheel hub motor-based intelligent rail electric car low-floor rubber wheel bogie which can solve the problem of insufficient power of four or more sections of intelligent rail electric cars and can realize a full-through low-floor structure of a vehicle. Meanwhile, the bogie can meet the requirement of full-axle steering, and has small turning radius and flexible steering. In addition, the bogie can also improve the running stability of the intelligent rail electric car.
Fig. 1 shows a bogie according to an embodiment of the invention. The bogie includes, but is not limited to, a wheel hub motor assembly 101, an independent air suspension system 102, a rubber wheel 103, a wheel rim 104, a break-away steer-by-wire mechanism 105, and a bogie chassis 106.
The in-wheel motor assembly 101 is connected with an independent air suspension system 102 through a spherical hinge. In one embodiment, the knuckle upper and lower ball pins in the in-wheel motor assembly 101 are ball-hinged to the upper and lower wishbones of the independent air suspension system 102, respectively.
The break-off steer-by-wire mechanism 105 is fixedly connected with the in-wheel motor assembly 101. In one embodiment, the knuckle arm of the break-away steer-by-wire mechanism 105 is bolted to the knuckle in the in-wheel motor assembly 101, and the steering arm of the break-away steer-by-wire mechanism 105 is mounted to the truck underframe 106 via a rotating shaft.
The upper and lower crossbars of the independent air suspension system 102 are mounted on the truck bed 106 by rubber ball bonds.
Fig. 2 shows a schematic structural diagram of an in-wheel motor assembly according to an embodiment of the present invention. The in-wheel motor assembly 101 includes, but is not limited to, a planetary gear reducer, a motor and its controller, a drum brake, and a knuckle.
The planetary reduction gear includes a sun gear and a carrier. The sun gear is used for power input, the planet carrier is used for power output to drive the tire, the gear ring is fixed on a stator rack of the motor, the sun gear is connected with an output shaft spline of the motor, and a hub bearing is arranged between a planet carrier rotating shaft and a steering knuckle in the planetary reducer, so that the tire and the steering knuckle rotate. A motor bearing is arranged between a rotor frame of the motor and the steering knuckle, and a stator frame of the motor is fixed on the steering knuckle, so that the rotation of a stator and a rotor of the motor is realized.
A drum brake includes a brake drum and a brake shoe mechanism. The brake drum is fixed on a rotor frame of the motor, the brake shoe mechanism is arranged on the steering knuckle, and the brake of the planet carrier is realized by braking the motor rotor.
FIG. 3 illustrates a front view of a suspension according to an embodiment of the present invention. FIG. 4 illustrates a top view of a suspension according to an embodiment of the present invention. The present invention utilizes an independent air suspension system that includes, but is not limited to, upper and lower crossbars (steering mechanisms), damping elements (shock absorbers), and air springs (resilient elements).
The upper end of the air spring is fixedly connected to the underframe through a bolt, and the lower end of the air spring is fixedly connected to the upper cross arm through a bolt.
The upper end of the shock absorber is flexibly connected to the underframe through rubber, and the lower end of the shock absorber is flexibly connected to the lower cross arm through rubber.
The suspension system may further include a height valve assembly for controlling inflation or deflation of the air springs, the height valve assembly being connected to the air spring lines.
Compared with the air suspension in the prior art, the independent air suspension system has the main structural characteristics that:
firstly, an air spring is adopted as an elastic element, so that the comfort is good;
and secondly, the left wheel jump and the right wheel jump of the double-wishbone independent suspension are not influenced mutually, and the comfort and the operation stability are good.
Fig. 5 shows a schematic diagram of a steering mechanism according to an embodiment of the invention. Fig. 6 shows a minimum turning radius diagram of the steering mechanism. The invention adopts a disconnected steer-by-wire mechanism, which includes, but is not limited to, a left tie rod, a right tie rod, a middle tie rod, a left steering rocker arm, a right steering rocker arm, a steering cylinder, a left knuckle arm, and a right knuckle arm.
The left and right steering rocker arms are arranged on the underframe through a rotating shaft;
the left end and the right end of the middle tie rod are respectively connected with the left steering rocker arm and the right steering rocker arm in a spherical hinge mode;
the left end and the right end of the left tie rod are respectively connected with a left steering knuckle arm and a left steering rocker arm in a spherical hinge mode;
the left end and the right end of the right transverse pull rod are respectively connected with the right steering knuckle arm and the right steering rocker arm in a spherical hinge mode;
the front end and the rear end of the steering oil cylinder are respectively connected with the right steering rocker arm and the underframe in a spherical hinge mode;
the left and right knuckle arms are respectively connected to the left and right knuckles of the hub motor assembly through bolts.
Compared with the existing steering mechanism, the break-type steer-by-wire mechanism has the following advantages that:
firstly, the wire control is characterized by no need of mechanism transmission and simple structure;
secondly, the disconnected type is characterized in that the disconnected type is matched with an independent suspension for use, and the single-wheel jumping does not influence the steering of the other wheel.
In one embodiment, the steering mechanism is required to meet a minimum turn radius of 15m, with the maximum inner/outer wheel turn being greater than 14.81/13.15, as shown in FIG. 6.
The invention relates to a bogie technology adopting a hub motor, a rubber wheel bogie technology suitable for low-floor vehicles and a bogie technology capable of actively steering. The low-floor rubber wheel bogie based on the hub motor provided by the invention has the following beneficial technical effects:
firstly, the invention adopts the hub motor technology to realize all-wheel drive, solves the problem of insufficient power of four or more section intelligent rail electric vehicles, and meets the requirement of large transportation capacity in intelligent rails;
secondly, the invention adopts an independent suspension structure to realize a full-through low-floor structure of the vehicle, thereby facilitating passengers to get on and off and simultaneously improving the running stability of the intelligent track electric vehicle;
and thirdly, the invention adopts the break-off type steer-by-wire mechanism, realizes the full-axle steer-by-wire function, has small turning radius of the vehicle and flexible steering, and can adapt to various urban roads.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
This application uses specific words to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims.
The terms and expressions which have been employed herein are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.
Also, it should be noted that although the present invention has been described with reference to the current specific embodiments, it should be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes or substitutions may be made without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments be included within the scope of the claims of the present application.
Claims (10)
1. The utility model provides a low floor rubber tyer bogie based on in-wheel motor which characterized in that includes:
the system comprises a hub motor assembly, an independent air suspension system, a rubber wheel, a rim, a disconnected steer-by-wire mechanism and a bogie chassis;
wherein:
the rubber wheel is arranged on the rim, the rubber wheel and an assembly body of the rim form a rubber wheel assembly, and the rubber wheel assembly is fixedly connected with the hub motor assembly;
the hub motor assembly is connected with the independent air suspension system through a spherical hinge;
the disconnected steer-by-wire mechanism is fixedly connected with the hub motor assembly and is connected to the bogie chassis through a rotating shaft;
the independent air suspension system is connected to the bogie chassis by rubber ball glue.
2. The low-floor rubber wheel bogie of claim 1, characterized in that the knuckle upper and lower ball pins of the in-wheel motor assembly are ball-hinged with the upper and lower wishbones of the independent air suspension system, respectively.
3. The low-floor rubber wheel bogie of claim 1, characterized in that the rubber wheel assembly is fixedly connected with the in-wheel motor assembly through bolts.
4. The low-floor rubber wheel bogie of claim 1, characterized in that the knuckle arm of the break-off steer-by-wire mechanism is fixed on the knuckle of the in-wheel motor assembly by a bolt, and the steering rocker arm of the break-off steer-by-wire mechanism is connected to the bogie underframe through the rotating shaft.
5. The low-floor rubber wheel truck of claim 1, characterized in that the in-wheel motor assembly comprises:
the device comprises a planetary reducer, a motor and a controller thereof, a drum brake and a steering knuckle.
The sun gear of the planetary reducer is used for power input, the planet carrier of the planetary reducer is used for power output to drive the tire, the gear ring is fixed on a stator rack of the motor, the sun gear is in splined connection with an output shaft of the motor, and a hub bearing is arranged between a rotating shaft of the planet carrier of the planetary reducer and the steering knuckle, so that the rotation between the tire and the steering knuckle is realized; a motor bearing is arranged between a rotor frame of the motor and the steering knuckle, and a stator frame of the motor is fixed on the steering knuckle, so that the rotation of a stator and a rotor of the motor is realized.
6. The low-floor wheel truck of claim 5, characterized in that the drum brake comprises:
a brake drum and brake shoe mechanism;
the brake drum is fixed on a rotor frame of the motor, the brake shoe mechanism is installed on the steering knuckle, and the planet carrier is braked by braking the motor rotor.
7. The low-floor rubber wheel truck of claim 1, characterized in that the independent air suspension system comprises:
the device comprises an upper cross arm, a lower cross arm, a shock absorber, an air spring and a height valve assembly;
the upper end of the air spring is fixedly connected to the underframe through a bolt, and the lower end of the air spring is fixedly connected to the upper cross arm through a bolt;
the upper end of the shock absorber is flexibly connected to the underframe through rubber, and the lower end of the shock absorber is flexibly connected to the lower cross arm through rubber;
the height valve assembly is connected with the air spring pipeline and is used for controlling the air inflation or deflation of the air spring.
8. The low-floor wheel truck of claim 1, wherein the breakaway steer-by-wire mechanism comprises:
the steering mechanism comprises a left tie rod, a right tie rod, a middle tie rod, a left steering rocker arm, a right steering rocker arm, a steering oil cylinder, a left steering knuckle arm and a right steering knuckle arm;
wherein:
the left and right steering rocker arms are arranged on the underframe through a rotating shaft;
the left end and the right end of the middle transverse pull rod are respectively connected with the left steering rocker arm and the right steering rocker arm in a spherical hinge mode;
the left end and the right end of the left tie rod are respectively connected with the left steering knuckle arm and the left steering rocker arm in a spherical hinge mode;
the left end and the right end of the right transverse pull rod are respectively connected with the right steering knuckle arm and the right steering rocker arm in a spherical hinge mode;
the front end and the rear end of the steering oil cylinder are respectively connected with the right steering rocker arm and the bottom frame in a spherical hinge mode;
the left and right knuckle arms are respectively connected to the left and right knuckles of the hub motor assembly through bolts.
9. The low-floor rubber wheel truck of claim 8, characterized in that the break-off steer-by-wire mechanism does not require mechanical transmission and, in cooperation with the independent air suspension system, single wheel bounce does not affect the steering of the other wheel.
10. The low-floor wheel truck of claim 8 in which the break-off steer-by-wire mechanism has a 15m minimum turn radius, the maximum turn angles of the inner and outer wheels being greater than 14.81 ° and 13.15 °, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911201780.5A CN112874561A (en) | 2019-11-29 | 2019-11-29 | Low-floor rubber wheel bogie based on hub motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911201780.5A CN112874561A (en) | 2019-11-29 | 2019-11-29 | Low-floor rubber wheel bogie based on hub motor |
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| CN112874561A true CN112874561A (en) | 2021-06-01 |
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| CN201911201780.5A Pending CN112874561A (en) | 2019-11-29 | 2019-11-29 | Low-floor rubber wheel bogie based on hub motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115489556A (en) * | 2021-06-17 | 2022-12-20 | 湖南中车智行科技有限公司 | Rubber wheel power dispersion bogie assembly |
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| CN108407566A (en) * | 2018-04-27 | 2018-08-17 | 石家庄中博汽车有限公司 | Suspension system and car |
| CN208263918U (en) * | 2018-04-27 | 2018-12-21 | 石家庄中博汽车有限公司 | Suspension system and car |
| CN110329023A (en) * | 2019-08-12 | 2019-10-15 | 西南交通大学 | A kind of hub motor double cross arm independent suspension |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115489556A (en) * | 2021-06-17 | 2022-12-20 | 湖南中车智行科技有限公司 | Rubber wheel power dispersion bogie assembly |
| WO2022262458A1 (en) * | 2021-06-17 | 2022-12-22 | 湖南中车智行科技有限公司 | Rubber wheel power dispersion bogie assembly |
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