CN202847439U - Electric automobile hub hydraulic motor drive system - Google Patents
Electric automobile hub hydraulic motor drive system Download PDFInfo
- Publication number
- CN202847439U CN202847439U CN 201220542118 CN201220542118U CN202847439U CN 202847439 U CN202847439 U CN 202847439U CN 201220542118 CN201220542118 CN 201220542118 CN 201220542118 U CN201220542118 U CN 201220542118U CN 202847439 U CN202847439 U CN 202847439U
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- electric automobile
- hydraulic motor
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- motor
- hydraulic
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model discloses an electric automobile hub hydraulic motor drive system. The electric automobile hub hydraulic motor drive system comprises wheels (8), a storage battery set (3), a direct current / direct current (DC/DC) converter (2), a motor (4), an electronic control unit (3), a hydraulic transmission system and a continuously variable transmission automatic control system. The hydraulic transmission system comprises an oil tank (5), a one-way variable pump (6), two high speed switch valves (10), two reversing valves (7) and two hub hydraulic motors (9), wherein the oil tank (5) and the one-way variable pump (6) are connected with each other through an oil pipe, and the two high speed switch valves (10), the two reversing valves (7) and the two hub hydraulic motors (9) are of a left wheel loop and a right wheel loop. The continuously variable transmission automatic control system comprises a wheel speed sensor (13), an accelerator pedal position sensor (11), a brake pedal position sensor (15), a variable speed controller (14) and a pulse modulator (12). The electric automobile hub hydraulic motor drive system can enable an electric automobile to achieve continuously variable transmission, eliminates a reducer and a differential mechanism, reduces unsprung mass of the electric automobile, enables space distribution of the motors and a power battery, and benefits achieving an integrated control of drive, brake and steer of the electric automobile.
Description
Technical field
The utility model relates to a kind of drive system of electric automobile, particularly a kind of electric automobile hub fluid motor-driven system.
Background technology
The problems such as the oil resources shortage that automobile industry development brings, environmental pollution, traffic accident become increasingly conspicuous, and electronlmobil has the incomparable advantage of orthodox car in energy-saving and environmental protection and aspect of performance, so research and development electronlmobil, especially the In-wheel motor driving electronlmobil is the effective way that addresses the above problem.The In-wheel motor driving electronlmobil with the drive motor distributing installation in each drive wheel, have the outstanding advantages such as the messenger chain of driving is short, transmission is efficient, compact conformation, splendid dynamics Controlling performance is arranged simultaneously, can effectively reduce energy consumption of vehicles, improving the vehicle active safety energy, is the important directions of electronlmobil field of research.But the wheel limit mechanism structure of In-wheel motor driving electronlmobil is complicated, and nonspring carried mass is large, and motor size and quality are very limited, and the space of motor and power supply is arranged dumb, has had a strong impact on the performance of electronlmobil.
Summary of the invention
The utility model technical issues that need to address are complicated for the wheel limit mechanism structure of In-wheel motor driving electronlmobil, nonspring carried mass is large, motor size and quality are subjected to considerable restraint, inflexible problem is arranged in motor and power supply space, utilize that the hydrostatic drive volume is little, lightweight, response rapidly, the advantage of large, the space flexible arrangement of stable drive, driving torque, replace wheel hub motor with the wheel hub HM Hydraulic Motor, propose a kind of electric automobile hub fluid motor-driven system.
For addressing the above problem, technical solution adopted in the utility model is: a kind of electric automobile hub fluid motor-driven system comprises wheel, battery pack, DC/DC changer, electrical motor and ECU (Electrical Control Unit), power hydraulic system and stepless change autonomous cruise speed system.Battery pack links to each other with electrical motor by the DC/DC changer, and the nonadjustable direct current (DC) that the DC/DC changer produces battery pack becomes adjustable direct current (DC) input electrical motor.ECU (Electrical Control Unit) control electromotor intermittent works in the best power performance zone.
Above-mentioned power hydraulic system comprises two high-speed switch valves in the fuel tank that is connected by oil pipe, unidirectional controllable capacity pump and left and right wheel loop, two change-over valves and two wheel hub HM Hydraulic Motor.Unidirectional controllable capacity pump is directly driven by electrical motor, and oil inlet links to each other with fuel tank, and oil outlet links to each other with two high-speed switch valve one ports.The high-speed switch valve another port links to each other with wheel hub HM Hydraulic Motor oil inlet through change-over valve.The oil outlet of wheel hub HM Hydraulic Motor links to each other with fuel tank through change-over valve.
Above-mentioned stepless change autonomous cruise speed system comprises wheel speed sensors, accelerator pedal position sensor, brake pedal position sensor, variable-speed controller and the quantizer that is connected by circuit.Wheel speed sensors, accelerator pedal position sensor and brake pedal position sensor are connected with variable-speed controller respectively, and variable-speed controller links to each other with quantizer again, and quantizer links to each other with two high-speed switch valves.
The beneficial effect that adopts technique scheme to produce is: electric automobile hub fluid motor-driven described in the utility model system utilizes the hydrostatic drive volume little, lightweight, response rapidly, stable drive, driving torque is large, the advantage of space flexible arrangement, replace wheel hub motor with the wheel hub HM Hydraulic Motor, can make electronlmobil realize stepless change, retarder and diff have been saved simultaneously, alleviated the nonspring carried mass of automobile, so that the space of motor and power supply layout is more flexible, and be easy to realize the driving of electronlmobil, braking and the integrated control that turns to.
Description of drawings
Fig. 1 is the structure principle chart of electric automobile hub fluid motor-driven described in the utility model system.
Among the figure: the 1-ECU (Electrical Control Unit); The 2-DC/DC changer; The 3-battery pack; The 4-electrical motor; The 5-fuel tank; The unidirectional controllable capacity pump of 6-; The 7-change-over valve; The 8-wheel; 9-wheel hub HM Hydraulic Motor; The 10-high-speed switch valve; The 11-accelerator pedal position sensor; The 12-pulse width modulator; The 13-wheel speed sensors; The 14-variable-speed controller; The 15-brake pedal position sensor.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Described in the utility model is a kind of electric automobile hub fluid motor-driven system, comprises wheel 8, battery pack 3, DC/DC changer 2, electrical motor 4 and ECU (Electrical Control Unit) 1, power hydraulic system and stepless change autonomous cruise speed system.Wherein, power hydraulic system comprises two high-speed switch valves 10 in the fuel tank 5, unidirectional controllable capacity pump 6 and the left and right wheel loop that are connected by oil pipe, two change-over valves 7 and two wheel hub HM Hydraulic Motor 9, what unidirectional controllable capacity pump 6 adopted is the unidirectional controllable capacity pump of plunger, what high-speed switch valve 10 adopted is electromagnetic type two-position three way high-speed switch valve, what change-over valve 7 adopted is the electromagnetic type two-position four way change valve, and what HM Hydraulic Motor 9 adopted is the ball-and-spigot hydraulic motor with inner curved piston; The stepless change autonomous cruise speed system comprises wheel speed sensors 13, accelerator pedal position sensor 11, brake pedal position sensor 15, variable-speed controller 14 and quantizer 12.
What battery pack 3 was exported is nonadjustable direct current (DC), becomes adjustable direct current (DC) input electrical motor 4 by DC/DC changer 2, and ECU (Electrical Control Unit) 1 control electrical motor 4 intermittent uses are in the best power performance zone.Electrical motor 4 drives unidirectional controllable capacity pump 6 rotations, low pressure oil in the fuel tank 5 pumps into from the oil inlet of unidirectional controllable capacity pump 6, oil outlet output high pressure oil, drive HM Hydraulic Motor 9 rotations through high-speed switch valve 10, change-over valve 7 successively by tubing transmission, HM Hydraulic Motor 9 is directly installed on the wheel hub of wheel 8, rotate thereby drive wheel 8, low pressure oil flows back to fuel tank 5 from the oil outlet of wheel hub HM Hydraulic Motor 9 through change-over valve 7 again.
When electronlmobil need to accelerate or brake, chaufeur step on the throttle pedal or brake pedal, accelerator pedal position sensor 11 or brake pedal position sensor 15 be the desired speed signal that obtains, and the actual vehicle speed signal that obtains with wheel speed sensors 13 is inputted in the variable-speed controller 14 and compared.Pulse width modulator 12 carries out the action that two high-speed switch valves 10 are controlled in pulse duration modulation according to the difference that relatively obtains, and the flow of hydraulic oil changes in the wheel hub HM Hydraulic Motor 9, and the rotating speed of wheel hub HM Hydraulic Motor 9 also changes thereupon.High-speed switch valve 10 responses can be controlled continuously to flow rapidly, thereby realize stepless change.
When electronlmobil is moveed backward, only need to be in the reversing control position by control change-over valve 7, just can change the flow direction of hydraulic oil in wheel hub HM Hydraulic Motor 9, thereby change the hand of rotation of wheel hub HM Hydraulic Motor 9, realize the reversing demand of electronlmobil.
When electronlmobil turns to, variable-speed controller 14 is controlled respectively the switching action of two high-speed switch valves 10 by pulse width modulator 12, so that the flow of 9 hydraulic oil is not identical in two wheel hub HM Hydraulic Motor, the rotating speed of two wheel hub HM Hydraulic Motor 9 is just not identical yet, thereby realize having saved diff the different demand of inside and outside vehicle wheel rotational speed in the time of also satisfying electronlmobil and turn to.
Claims (3)
1. electric automobile hub fluid motor-driven system, comprise wheel (8), battery pack (3), DC/DC changer (2), electrical motor (4), ECU (Electrical Control Unit) (1), power hydraulic system and stepless change autonomous cruise speed system, it is characterized in that: described power hydraulic system comprises two high-speed switch valves (10), two change-over valves (7) and two wheel hub HM Hydraulic Motor (9) in the fuel tank (5) that is connected by oil pipe, unidirectional controllable capacity pump (6) and left and right wheel loop; Unidirectional controllable capacity pump (6) is directly driven by electrical motor (4), oil inlet links to each other with fuel tank (5), oil outlet links to each other with two high-speed switch valves (10) one ports, high-speed switch valve (10) another port links to each other with HM Hydraulic Motor (9) oil inlet through change-over valve (7), HM Hydraulic Motor (9) is directly installed on the wheel hub of wheel (8), and the oil outlet of wheel hub HM Hydraulic Motor (9) links to each other with fuel tank (5) through change-over valve (7).
2. electric automobile hub fluid motor-driven according to claim 1 system is characterized in that: in left and right two wheel loops the rotating speed that a high-speed switch valve (10) is controlled respectively two wheels (8) is set respectively.
3. electric automobile hub fluid motor-driven according to claim 1 system, it is characterized in that: what described wheel hub HM Hydraulic Motor (9) adopted is the ball-and-spigot hydraulic motor with inner curved piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542118 CN202847439U (en) | 2012-10-23 | 2012-10-23 | Electric automobile hub hydraulic motor drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220542118 CN202847439U (en) | 2012-10-23 | 2012-10-23 | Electric automobile hub hydraulic motor drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202847439U true CN202847439U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220542118 Expired - Fee Related CN202847439U (en) | 2012-10-23 | 2012-10-23 | Electric automobile hub hydraulic motor drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202847439U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553854A (en) * | 2015-01-30 | 2015-04-29 | 杨旭 | Electric fluid type double-running driving system |
| CN106043421A (en) * | 2016-07-08 | 2016-10-26 | 汤广禹 | Novel automobile steering auxiliary device |
| CN111976471A (en) * | 2020-08-09 | 2020-11-24 | 肇庆高新区伙伴汽车技术有限公司 | Method for improving cost performance of new energy automobile and automatic transmission automobile |
-
2012
- 2012-10-23 CN CN 201220542118 patent/CN202847439U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553854A (en) * | 2015-01-30 | 2015-04-29 | 杨旭 | Electric fluid type double-running driving system |
| CN106043421A (en) * | 2016-07-08 | 2016-10-26 | 汤广禹 | Novel automobile steering auxiliary device |
| CN111976471A (en) * | 2020-08-09 | 2020-11-24 | 肇庆高新区伙伴汽车技术有限公司 | Method for improving cost performance of new energy automobile and automatic transmission automobile |
| CN111976471B (en) * | 2020-08-09 | 2022-01-18 | 肇庆高新区伙伴汽车技术有限公司 | Method for improving cost performance of new energy automobile and automatic transmission automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |