CN204150102U - Plug-in hybrid-power automobile steering safety protection system - Google Patents

Plug-in hybrid-power automobile steering safety protection system Download PDF

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Publication number
CN204150102U
CN204150102U CN201420551997.5U CN201420551997U CN204150102U CN 204150102 U CN204150102 U CN 204150102U CN 201420551997 U CN201420551997 U CN 201420551997U CN 204150102 U CN204150102 U CN 204150102U
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China
Prior art keywords
oil pump
connects
signal
sensor
inverter
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Expired - Fee Related
Application number
CN201420551997.5U
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Chinese (zh)
Inventor
代幼文
邓平
彭勇
马兹林
雷飞勇
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CHONGQING HENGTONG ELECTRIC BUS POWER SYSTEM CO LTD
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CHONGQING HENGTONG ELECTRIC BUS POWER SYSTEM CO LTD
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Priority to CN201420551997.5U priority Critical patent/CN204150102U/en
Application granted granted Critical
Publication of CN204150102U publication Critical patent/CN204150102U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of plug-in hybrid-power automobile steering safety protection system, it is characterized in that, comprising: control system, power battery pack, electric boosted oil pump, commutation shuttle valve, hydraulic booster steering wheel, driving engine, mechanically aided oil pump; Described control system signal input part connects voltage sensor and driving engine respectively, described control system signal output part connects inverter and driving engine respectively, the input end of described commutation shuttle valve connects electric boosted oil pump and mechanically aided oil pump respectively, the mouth of described commutation shuttle valve connects hydraulic booster steering wheel, one end oil circuit that described commutation shuttle valve connects input pressure high outputs to hydraulic booster steering wheel, described driving engine connects mechanically aided oil pump, described power battery pack connects inverter, and described inverter connects electric boosted oil pump.

Description

Plug-in hybrid-power automobile steering safety protection system
Technical field
The utility model relates to automatic field, particularly relates to a kind of plug-in hybrid-power automobile steering safety protection system.
Background technology
Along with the propelling of China's energy-saving and emission-reduction policy, the quantity of new-energy automobile will get more and more, particularly plug-in hybrid-power automobile, because its fractional energy savings is high, effectively can reduce the dependence of China to oil resources, limited oil can be used for prior aspect, and significantly can reduce exhaust emission, be the best product realizing the energy-saving and emission-reduction of traffic aspect.
Large and medium-sized integral new-energy passenger and commercial vehicle/comm..vehicle are comparatively large due to quality, for improving operation comfort in the steering system, usually adopt hydraulic power-assist steering system.Plug-in hybrid-power automobile has the pure motor driving pattern under the state of killing engine, and therefore plug-in hybrid-power automobile needs to install a set of electric hydraulic power-assisted steering oil pump additional.Electric hydraulic power-assisted steering oil pump, provides electric energy by high voltage power battery, transfers alternating current to by inverter, drives electric oil pump to provide hydraulic booster for steering wheel.Owing to realizing, this power-assisted mode normal need of work electrokinetic cell system is working properly, inverter is working properly, machine operation is normal, high voltage supply system is working properly, low-voltage power supply system is working properly.Have in this power-assisted mode work that link is many, the problem of poor reliability, in vehicle operating, any one link wherein breaks down, and all can occur the grave accident that power steering disappearance Vehicular turn is out of control.
Although new-energy automobile originating firm has made a large amount of Optimization Works in electric turning booster system, the accident of electric turning booster system sudden failure when vehicle operating has still occurred frequently, runs buried great hidden danger to vehicle safety.Although at present a lot of relevant enterprise has done many effort in electrobus hydraulic booster reliability, safety, the problem of integral new-energy passenger and big-and-middle-sized commercial vehicle/comm..vehicle hydraulic booster system reliability, safety aspect has not still had to be solved at all.
Utility model content
The utility model is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of plug-in hybrid-power automobile steering safety protection system.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of plug-in hybrid-power automobile steering safety protection system, its key is, comprising: control system 8, power battery pack 1, electric boosted oil pump 3, commutation shuttle valve 4, hydraulic booster steering wheel 5, driving engine 9, mechanically aided oil pump 10;
Described control system signal input part connects vehicle speed signal sensor, rotary speed signal sensor and voltage sensor, for receiving corresponding vehicle speed signal, tach signal and voltage signal;
Described control system signal output part connects electric boosted oil pump 3 and mechanically aided oil pump 10 respectively, control the work of one of electric boosted oil pump 3 and mechanically aided oil pump 10, described commutation shuttle valve 4 input end connects the hydraulic oil mouth of electric boosted oil pump 3 and mechanically aided oil pump 10 respectively, the mouth of described commutation shuttle valve 4 is connected with hydraulic booster steering wheel 5 hydraulic oil inlet, described driving engine 9 connects mechanically aided oil pump 10, and described power battery pack 1 connects electric boosted oil pump 3.
The beneficial effect of technique scheme is: start rapidly another power-assisted oil pump when in running order power-assisted oil pump failure, ensures that interrupting does not appear in the power-assisted oil of supply steering box.
Described plug-in hybrid-power automobile steering safety protection system, preferably, also comprises: inverter 2;
Described power battery pack 1 mouth connects inverter 2, and described inverter 2 other end connects electric boosted oil pump 3, and the electric energy that power battery pack 1 provides is converted into the electric boosted oil pump 3 of alternating current rear drive by inverter 2 and works.
The beneficial effect of technique scheme is: by inverter, direct current (DC) is converted to alternating current, helps to drive electric boosted oil pump 3 to work.
Described plug-in hybrid-power automobile steering safety protection system, preferably, described control system comprises: sensor 7, controller 8, vehicle speed signal receptor, tach signal receptor and actuation signal transmitter, enable signal transmitter;
The sampling end of described sensor 7 is connected between inverter 2 and electric boosted oil pump 3, for the input voltage of the output voltage and motor of measuring inverter 3;
Corresponding vehicle speed signal, tach signal and voltage signal is received by vehicle speed signal receptor, tach signal receptor and voltage signal receptor, and vehicle speed signal, tach signal and voltage signal are judged current is mechanical oil pump work or electric oil pump work, thus transmission actuation signal or enable signal control electric boosted oil pump 3 and mechanically aided oil pump 10.
The beneficial effect of technique scheme is: vehicle speed signal receptor, tach signal receptor and voltage signal receptor accept the speed of a motor vehicle, rotating speed, voltage signal respectively, and are judged by controller.
Described plug-in hybrid-power automobile steering safety protection system, preferably, described sensor 7 comprises:
Voltage sensor, current sensor, tachogen, pressure sensor, speed sensor.
The beneficial effect of technique scheme is: detecting sensor uses voltage sensor, current sensor, tachogen, pressure sensor the data parameters of multinomial hybrid electric vehicle can be detected.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
The utility model can start rapidly another power-assisted oil pump when in running order power-assisted oil pump failure, ensure that interrupting does not appear in the power-assisted oil of supply steering box, the operating torque of pilot control Vehicular turn is not changed, guarantees the driving safety of vehicle.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the utility model plug-in hybrid-power automobile steering safety protection system schematic diagram.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1; the utility model proposes a kind of plug-in hybrid-power automobile steering safety protection system; when the electric-only mode of plug-in hybrid-power automobile in the situation of killing engine runs, the power steering of its steering wheel is provided by electrohydraulic steering power-assisted oil pump.If electrohydraulic steering power-assisted oil pump breaks down; otherwise this protection system energy self-starter tool steering pump is worked as mechanical steering power-assisted oil pump and is broken down; this protection system can start electric turning booster oil pump automatically, thus ensures the safety of steering swivel system.This system comprises electric turning booster oil pump, electric turning booster Oil pump electrical machinery inverter, car speed sensor, engine speed sensor, AC voltage sensor and mechanically aided oil pump driven by the engine.
Control system determines it is by mechanically aided oil pump or electric boosted operation of oil pump by vehicle present mode of operation.When electrohydraulic steering power-assisted operation of oil pump, the electric energy that power supply provides is converted into alternating current rear drive electric turning booster operation of oil pump by inverter, and the hydraulic oil that electric turning booster oil pump exports is transported to hydraulic booster steering wheel by commutation shuttle valve and realizes hydraulic booster; When mechanical steering power-assisted operation of oil pump, mechanical steering power-assisted oil pump is by engine drive, and the hydraulic oil that mechanical steering power-assisted oil pump exports is transported to hydraulic booster steering wheel by commutation shuttle valve and realizes hydraulic booster.
The utility model can start rapidly another power-assisted oil pump when in running order power-assisted oil pump failure, ensure that interrupting does not appear in the power-assisted oil of supply steering box, the operating torque of pilot control Vehicular turn is not changed, guarantees the driving safety of vehicle.
The utility model provides a kind of plug-in hybrid-power automobile steering safety protection system, its key is, comprising: control system 8, power battery pack 1, electric boosted oil pump 3, commutation shuttle valve 4, hydraulic booster steering wheel 5, driving engine 9, mechanically aided oil pump 10;
The signal input part of described control system connects vehicle speed signal receptor, tach signal receptor and voltage signal receptor, for receiving corresponding vehicle speed signal, tach signal and voltage signal;
Described control system signal output part connects electric boosted oil pump 3 and mechanically aided oil pump 10 respectively, control the work of one of electric boosted oil pump 3 and mechanically aided oil pump 10, described commutation shuttle valve 4 input end connects the hydraulic oil mouth of electric boosted oil pump 3 and mechanically aided oil pump 10 respectively, the mouth of described commutation shuttle valve 4 is connected with hydraulic booster steering wheel 5 hydraulic oil inlet, described driving engine 9 connects mechanically aided oil pump 10, and described power battery pack 1 connects electric boosted oil pump 3.
The beneficial effect of technique scheme is: start rapidly standby another power-assisted oil pump when in running order power-assisted oil pump failure, ensures that interrupting does not appear in the power-assisted oil of supply steering box.
Described plug-in hybrid-power automobile steering safety protection system, preferably, also comprises: inverter 2;
Described power battery pack 1 mouth connects inverter 2, and described inverter 2 other end connects electric boosted oil pump 3, and the electric energy that power battery pack 1 provides is converted into the electric boosted oil pump 3 of alternating current rear drive by inverter 2 and works.
The beneficial effect of technique scheme is: be converted to alternating current by inverter to direct current (DC), helps to drive electric boosted oil pump 3 to work.
Described plug-in hybrid-power automobile steering safety protection system, preferably, described control system comprises: sensor 7, controller 8, vehicle speed signal receptor, tach signal receptor, voltage signal receptor and actuation signal transmitter, enable signal transmitter;
The input end of described sensor 7 is connected between inverter 2 and electric boosted oil pump 3, for measuring voltage, electric current, rotating speed, the oil pressure of inverter 3;
Corresponding vehicle speed signal, tach signal and voltage signal is received by vehicle speed signal receptor, tach signal receptor and voltage signal receptor, and vehicle speed signal, tach signal and voltage signal are judged by controller 8, thus control electric boosted oil pump 3 and mechanically aided oil pump 10.
The beneficial effect of technique scheme is: vehicle speed signal receptor, tach signal receptor and voltage signal receptor accept the speed of a motor vehicle, rotating speed, voltage signal respectively, and are judged by controller.
Described plug-in hybrid-power automobile steering safety protection system, preferably, described sensor 7 comprises:
Voltage sensor, current sensor, tachogen, pressure sensor, speed sensor.
The beneficial effect of technique scheme is: detecting sensor uses voltage sensor, current sensor, tachogen, pressure sensor the data parameters of multinomial hybrid electric vehicle can be detected.
In order to realize above-mentioned purpose of the present utility model, according to first aspect of the present utility model, the utility model provides a kind of motor turning safety system, comprise electric boosted oil pump 3, mechanically aided oil pump 10 and control system, described control system controls the work of one of described electric boosted oil pump 3 and mechanically aided oil pump 10; Described control system comprises vehicle speed signal and the engine rotational speed signal of sensor 7, controller 8 and input control device; Described steering safety protection system also comprises commutation shuttle valve 4, hydraulic booster steering wheel 5, power supply 1 and inverter 2; Described power supply 1 is connected with inverter 2, described inverter 2 is connected with electric boosted oil pump 3, the circuit that described inverter 2 also consists of sensor 7, controller 8 is connected with mechanically aided oil pump 10, described commutation shuttle valve 4 is connected with mechanically aided oil pump 10 with electric boosted oil pump 3 respectively, and described commutation shuttle valve 4 is connected with hydraulic booster steering wheel 5; By sensor 7 and vehicle speed signal, controller 8 determines that one of described main power-assisted oil pump 3 and power-assisted oil pump 10 for subsequent use work; When the electric boosted oil pump 3 of needs works, the electric energy that power supply 1 provides is converted into the electric boosted oil pump 3 of alternating current rear drive by inverter 2 and works, and the hydraulic oil that electric boosted oil pump 3 exports is transported to hydraulic booster steering wheel 5 by commutation shuttle valve 4 and realizes hydraulic booster; When the mechanically aided oil pump 10 of needs works, driving engine 9 driving device power-assisted oil pump 10 works, and the hydraulic oil that mechanically aided oil pump 10 exports is transported to steering wheel 5 by commutation shuttle valve 4 and realizes hydraulic booster.
Preferably, described control system signal input part connects voltage sensor 7 and driving engine 9 respectively, described control system signal output part connects inverter 2 and driving engine 9 respectively, the input end of described commutation shuttle valve 4 connects electric boosted oil pump 3 and mechanically aided oil pump 10 respectively, the mouth of described commutation shuttle valve 4 connects hydraulic booster steering wheel 5, one end oil circuit that described commutation shuttle valve 4 connects input pressure high outputs to hydraulic booster steering wheel 5, described driving engine 9 connects mechanically aided oil pump 10, and described power battery pack 1 connects electric boosted oil pump 3.
The utility model has installed a set of steering safety protection system additional in plug-in hybrid-power automobile steering swivel system; when vehicle electric power-assisted oil pump systems breaks down; mechanically aided oil pump systems can be devoted oneself to work in time, automatically; ensure that interrupting does not appear in the hydraulic oil circulation of direction of the supply machine, thus ensure the driving safety of vehicle.
In a kind of preferred implementation of the present utility model, electric boosted oil pump 3, mechanically aided oil pump 10 are respectively by different driven by energy.
In another kind of preferred implementation of the present utility model, commutation shuttle valve is by Stress control automatic reverse.
In another preferred implementation of the present utility model, sensor 7 is one of voltage sensor, current sensor, tachogen, pressure sensor.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (4)

1. a plug-in hybrid-power automobile steering safety protection system, it is characterized in that, comprising: control system (8), power battery pack (1), electric boosted oil pump (3), commutation shuttle valve (4), hydraulic booster steering wheel (5), driving engine (9), mechanically aided oil pump (10);
Described control system signal input part connects vehicle speed signal sensor, rotary speed signal sensor and voltage sensor, for receiving corresponding vehicle speed signal, tach signal and voltage signal;
Described control system signal output part connects electric boosted oil pump (3) and mechanically aided oil pump (10) respectively, control the work of one of electric boosted oil pump (3) and mechanically aided oil pump (10), described commutation shuttle valve (4) input end connects the hydraulic oil mouth of electric boosted oil pump (3) and mechanically aided oil pump (10) respectively, the mouth of described commutation shuttle valve (4) is connected with hydraulic booster steering wheel (5) hydraulic oil inlet, described driving engine (9) connects mechanically aided oil pump (10), described power battery pack (1) connects electric boosted oil pump (3).
2. plug-in hybrid-power automobile steering safety protection system according to claim 1, is characterized in that, also comprises inverter (2);
Described power battery pack (1) mouth connects inverter (2), described inverter (2) other end connects electric boosted oil pump (3), and the electric energy that power battery pack (1) provides is converted into the electric boosted oil pump of alternating current rear drive (3) work by inverter (2).
3. plug-in hybrid-power automobile steering safety protection system according to claim 2, it is characterized in that, described control system comprises: sensor (7), controller (8), vehicle speed signal receptor, tach signal receptor and actuation signal transmitter, enable signal transmitter;
The sampling end of described sensor (7) is connected between inverter (2) and electric boosted oil pump (3), for measuring the input voltage of voltage that inverter (3) exports and motor;
By vehicle speed signal, tach signal and voltage signal, described controller (8) judges that current is mechanical oil pump work or electric oil pump work, thus transmission actuation signal or enable signal control electric boosted oil pump (3) and mechanically aided oil pump (10).
4. plug-in hybrid-power automobile steering safety protection system according to claim 3, is characterized in that, described sensor (7) comprising:
Voltage sensor, current sensor, tachogen, pressure sensor, speed sensor.
CN201420551997.5U 2014-09-24 2014-09-24 Plug-in hybrid-power automobile steering safety protection system Expired - Fee Related CN204150102U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420551997.5U CN204150102U (en) 2014-09-24 2014-09-24 Plug-in hybrid-power automobile steering safety protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420551997.5U CN204150102U (en) 2014-09-24 2014-09-24 Plug-in hybrid-power automobile steering safety protection system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109421790A (en) * 2017-08-29 2019-03-05 天津市松正电动汽车技术股份有限公司 A kind of hybrid vehicle servo steering system
CN110155165A (en) * 2018-02-12 2019-08-23 丰田自动车株式会社 Steering assist system
CN111605606A (en) * 2019-02-26 2020-09-01 湖南中车时代电动汽车股份有限公司 Hydraulic power-assisted steering power intelligent control system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109421790A (en) * 2017-08-29 2019-03-05 天津市松正电动汽车技术股份有限公司 A kind of hybrid vehicle servo steering system
CN110155165A (en) * 2018-02-12 2019-08-23 丰田自动车株式会社 Steering assist system
CN110155165B (en) * 2018-02-12 2021-09-14 丰田自动车株式会社 Steering assist system
CN111605606A (en) * 2019-02-26 2020-09-01 湖南中车时代电动汽车股份有限公司 Hydraulic power-assisted steering power intelligent control system and method

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150211

Termination date: 20200924