CN203472840U - Energy-saving braking system and electric automobile - Google Patents
Energy-saving braking system and electric automobile Download PDFInfo
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- CN203472840U CN203472840U CN201320587967.5U CN201320587967U CN203472840U CN 203472840 U CN203472840 U CN 203472840U CN 201320587967 U CN201320587967 U CN 201320587967U CN 203472840 U CN203472840 U CN 203472840U
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- vacuum pump
- storage tank
- magnetic clutch
- vacuum
- energy
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Abstract
The utility model discloses an energy-saving braking system which comprises an electromagnetic clutch, a vacuum pump, a vacuum pipeline (3), a gas storage tank (4) and a vehicle control unit (8), wherein the vacuum pump is connected with the gas storage tank (4) through the vacuum pipeline (3), the vehicle control unit (8) controls connection or disconnection of the electromagnetic clutch, and the electromagnetic clutch can drive the vacuum pump to rotate to vacuumize the gas storage tank (4). The utility model further discloses an electric automobile with the braking system. Wheels directly drive the vacuum pump to vacuumize the gas storage tank (4), the vacuum degree needed for braking is met or supplemented, and therefore power consumption of the electric vacuum pump is reduced, energy capacity of a battery is saved, and energy recovery efficiency of the electric automobile is improved.
Description
technical field
The utility model relates to electronlmobil field, especially a kind of energy-conservation brake system and electronlmobil.
Background technology
The insufficient driving range that electronlmobil once charges is one of key factor of its development of restriction always, so the saving electrokinetic cell energy of adopting an effective measure in Vehicle Driving Cycle process is significant.Electronlmobil adopts electric vacuum pump that brake power-assisted is provided, and in Vehicle Driving Cycle process, especially in the urban district of crowded traffic, need to brake frequently, has consumed many energy contents of battery, has shortened the continual mileage of vehicle.
In view of this, people have designed energy conserving system according to electronlmobil feature, and the energy during by car retardation or brake or descending is converted into electric energy by electrical generator electrokinetic cell is charged.Yet electrokinetic cell need could provide energy into electric vacuum pump after DC/DC changes, during conversion, energy has been subject to loss.In addition, be subject to the many factors such as the charge discharge efficiency of battery and battery charge condition, energy reclaims net effciency and is restricted.
Therefore, when the energy reclaiming is only charged for battery, energy recovery efficiency is not high, and reducing the problems such as electric vacuum pump power consumption has to be solved.
Utility model content
The technical problem to be solved in the present invention has been to provide a kind of energy-conservation brake system and electronlmobil, has saved the electric energy of electric automobile power battery, has improved the efficiency that electric automobile energy reclaims.
The utility model provides a kind of energy-conservation brake system, wherein, described system comprises magnetic clutch, vacuum pump, vacuum line 3, storage tank 4 and entire car controller 8, described vacuum pump is connected with described storage tank 4 by described vacuum line 3, described entire car controller 8 is controlled adhesive or the disconnection of described magnetic clutch, and described magnetic clutch can drive described vacuum pump running to vacuumize described storage tank 4.
Further, described magnetic clutch comprises armature coil, and described armature coil is arranged on wheel, and described magnetic clutch is connected with described vacuum pump by described armature coil, and described vacuum pump can be synchronized with the movement along with described wheel.
Further, described system also comprises relay 9, and described entire car controller 8 is controlled adhesive or the disconnection of described magnetic clutch by described relay 9.
Further, the condition of described magnetic clutch adhesive is, the degree of vacuum in described storage tank 4 is less than threshold value, and Das Gaspedal is unclamped, and automobile gear level is greater than zero in D Drive and the speed of a motor vehicle.
Further, the condition that described magnetic clutch disconnects is that the degree of vacuum in storage tank reaches threshold value or Das Gaspedal is stepped on, automobile gear level is neutral gear or retreat shelves, or the speed of a motor vehicle is zero.
Further, described system comprises four magnetic clutchs 11,12,13,14, and the control signal of 8 pairs of described four magnetic clutchs of described entire car controller is identical.
Further, described system also comprises electric vacuum pump 6, and described vacuum pump and described electric vacuum pump 6 are coordinations, can to described storage tank 4, vacuumize respectively.
The utility model also provides a kind of energy-conservation electronlmobil, and wherein, described electronlmobil has been used described any energy-conservation brake system.
Compared with prior art, the utility model from a brand-new angle design energy-conservation system when electronlmobil deceleration or descending or brake, and the electronlmobil that uses described system.By wheel, directly drive vacuum pump to vacuumize storage tank 4, meet or the needed degree of vacuum of supplementary brake, thereby reduced the power consumption of electric vacuum pump, saved the energy content of battery, improved the energy recovery efficiency of electronlmobil, make to use the electronlmobil of described system can be in the situation that same electrokinetic cell, the time of travelling be more of a specified duration, and distance is farther.
Accompanying drawing explanation
Fig. 1 is the structural representation of energy-conservation brake system described in the utility model;
Fig. 2 is the diagram of circuit of the utility model brake system method of operation.
The specific embodiment
Thought of the present utility model is: by a kind of energy-conservation brake system, come for electric automobile energy saving, described system comprises the parts such as magnetic clutch, vacuum pump, vacuum line 3, storage tank 4, entire car controller 8 and relay 9.Entire car controller 8 is controlled magnetic clutch by relay 9 and is engaged, wheel drives vacuum pump to turn round by magnetic clutch, through 3 pairs of storage tanks 4 of vacuum line, vacuumize again, required degree of vacuum when the kinetic transformation when deceleration or brake or the descending is for brake by vehicle by vacuum pump, thereby reduce the time of run of electric vacuum pump, save the energy content of battery, realize energy and reclaim.
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 shows the energy-conservation brake system of the utility model embodiment 1, in embodiment 1, energy-conservation brake system comprises (totally 4 of magnetic clutchs, be respectively 11,12,13,14), the part such as vacuum pump (totally 4, be respectively 21,22,23,24), vacuum line 3, storage tank 4, pressure sensor 5, electric vacuum pump 6, electric vacuum pump controller 7, entire car controller 8 and relay 9.Entire car controller 8 is controlled joint or the separation of magnetic clutch by relay 9, magnetic clutch 8 includes armature coil, described armature coil one end is arranged on wheel, one end is connected with vacuum pump, during vehicle operating, armature coil can be with wheel run-in synchronism, and drive vacuum pump run-in synchronism, then vacuumize required degree of vacuum when the kinetic transformation during by car retardation or brake or descending is for brake by vacuum pump through 3 pairs of storage tanks 4 of vacuum line.
In the present embodiment 1, the degree of vacuum in described storage tank 4 is to be detected by pressure sensor 5 by electric vacuum pump controller 7 or entire car controller 8, and the threshold value of degree of vacuum is according to different brake vacuum assist devices and difference.Described Das Gaspedal is unclamped and is referred in Vehicle Driving Cycle process, state when chaufeur unclamps Das Gaspedal; Entire car controller 8, according to the signal value of Das Gaspedal, contrasts default accelerator pedal signal scope and can judge that whether it is in releasing orientation.Judge that the method whether Das Gaspedal is stepped on is to judge by contrasting default accelerator pedal signal scope equally.Automobile gear level signal and vehicle speed signal are detected by entire car controller 8.
In the present embodiment 1, the armature coil power supply voltage of magnetic clutch is+VCC, and this voltage is the voltage after electrokinetic cell is changed by DC/DC.
In the present embodiment 1, the entry condition of described electric vacuum pump 6 be electric vacuum pump 6 powered on and storage tank 4 in degree of vacuum be less than threshold value, by electric vacuum pump controller 7 or entire car controller 8, control its unlatchings.The condition of closing of electric vacuum pump 6 is that the degree of vacuum in storage tank reaches threshold value, controls it equally close by electric vacuum pump controller 7 or entire car controller 8.Vacuum pump and electric vacuum pump 6 that described wheel drives are coordinations, for guaranteeing brake security, in the situation that the two all reaches entry condition separately, can work simultaneously.The control signal that is arranged on four magnetic clutchs on wheel is identical, and the stability of vehicle operating is higher.Because wheel drives adding of vacuum pump, thereby reduce the time of run of electric vacuum pump, save electrokinetic cell energy, realize energy and reclaim.
Fig. 2 shows the diagram of circuit of brake system method of operation described in embodiment 1, and key step is as follows:
Electronlmobil key switch get to beginning (ON) shelves and each several part self check all by time, electric vacuum pump controller 7 is sent to power on signal, allow its normal operation.Next be the opening and closing condition of judgement electric vacuum pump 6 and vacuum pump.The opening and closing of its intermediate pump are to realize by the closure of entire car controller 8 control relays 9 and disconnection.
Step S21: the degree of vacuum that entire car controller 8 or electric vacuum pump controller 7 detect in storage tank 4 by pressure sensor 5, if degree of vacuum is less than threshold value, performs step S22 and step S23, if degree of vacuum, in threshold value, performs step S24.
Step S22: open electric vacuum pump 6 by electric vacuum pump controller 7, return to step S21 continuation detection degree of vacuum simultaneously and whether be less than threshold value.
Step S23: entire car controller 8 detects vehicle gear signal, and gear performs step S26 while being D Drive, otherwise execution step S25.
Step S24: close electric vacuum pump 6 and disconnect relay 9, stopping storage tank 4 to vacuumize, returning to step S21 simultaneously and judge whether degree of vacuum is less than threshold value.
Step S25: disconnect relay 9, magnetic clutch is separated, wheel does not drive vacuum pump running, returns to step S21 simultaneously and judges whether degree of vacuum is less than threshold value.
Step S26: entire car controller 8 detects vehicle speed signal and judges whether the speed of a motor vehicle is zero, and the speed of a motor vehicle performs step S28 while being greater than zero, otherwise execution step S27.
Step S27: disconnect relay 9, magnetic clutch is separated, wheel does not drive vacuum pump running, returns to step S21 simultaneously and judges whether degree of vacuum is less than threshold value.
Step S28: entire car controller 8 detects accelerator pedal signal values, and contrast default accelerator pedal signal scope and can judge whether it is releasing orientation.If Das Gaspedal performs step S30 in releasing orientation, otherwise execution step S29.
Step S29: disconnect relay 9, magnetic clutch is separated, wheel does not drive vacuum pump running, returns to step S21 simultaneously and judges whether degree of vacuum is less than threshold value.
Step S30: closing relay 9, wheel drives vacuum pump running, and storage tank 4 is vacuumized, and part kinetic transformation is the degree of vacuum that brake needs, and realizes energy and reclaims, and returns to step S21 simultaneously and judges whether degree of vacuum is less than threshold value.
In the method for operation of above-mentioned brake system, wheel is driven vacuum pump running, storage tank 4 is vacuumized by magnetic clutch, reduced the work-hours of electric vacuum pump, save the energy of electrokinetic cell, realized energy recovery, reached the object that improves energy recovery efficiency.
In this method of operation, the degree of vacuum in described storage tank 4 is detected by pressure sensor 5 by electric vacuum pump controller 7 or entire car controller 8, and the threshold value of degree of vacuum is according to different brake vacuum assist devices and difference.Described Das Gaspedal is unclamped and is referred in Vehicle Driving Cycle process, state when chaufeur unclamps Das Gaspedal; Entire car controller 8, according to the signal value of Das Gaspedal, contrasts default accelerator pedal signal scope and can judge that whether it is in releasing orientation.Judge that the method whether Das Gaspedal is stepped on is to judge by contrasting default accelerator pedal signal scope equally.Automobile gear level signal and vehicle speed signal are detected by entire car controller 8.
Described vacuum pump and electric vacuum pump 6 are coordinations, for guaranteeing brake security, in the situation that the two all reaches entry condition separately, can work simultaneously.The control signal that is arranged on four magnetic clutchs on wheel is identical, because vacuum pump is driven by wheel, thus the time of run of minimizing electric vacuum pump.Save electrokinetic cell energy, realize energy and reclaim.
In closure or openness condition about vacuum pump, four conditions read sequencing indistinction, but while using, must be defined as wherein a kind of, so to any on result without impact.Provided a kind of method wherein below, as follows:
The step that described entire car controller 8 is controlled the joint of described magnetic clutch is,
S11, described entire car controller 8 detect the degree of vacuum of described storage tank 4, if degree of vacuum is less than threshold value, perform step S12, otherwise return to S11;
S12, described entire car controller 8 detect vehicle gear signal, if when gear is D Drive, perform step S13, otherwise return to S11;
S13, described entire car controller 8 detect vehicle speed signal, if the speed of a motor vehicle is greater than zero, performs step S14, otherwise return to S11;
S14, entire car controller 8 detect accelerator pedal signal value, and contrast default accelerator pedal signal scope, judge that whether Das Gaspedal is releasing orientation, if releasing orientation performs step S15, otherwise returns to S11;
S15, magnetic clutch engage, otherwise return to S11.
Provide again a kind of method, as follows:
The step that described entire car controller (8) is controlled the disconnection of described magnetic clutch is,
S31, described entire car controller (8) detect the degree of vacuum of described storage tank (4), if degree of vacuum reaches threshold value, disconnect magnetic clutch, otherwise carry out S32;
S32, described entire car controller (8) detect vehicle gear signal, if gear when retreating shelves or neutral gear, disconnects magnetic clutch, otherwise execution S33;
S33, described entire car controller (8) detect vehicle speed signal, if the speed of a motor vehicle equals zero, disconnect magnetic clutch, otherwise carry out S34,
S34, entire car controller (8) detect accelerator pedal signal value, and contrast default accelerator pedal signal scope, judge that whether Das Gaspedal is releasing orientation, if not releasing orientation disconnects magnetic clutch, otherwise returns to S31.
Embodiment 2, for having used the electronlmobil of brake system energy-conservation described in embodiment 1, is applied to electronlmobil by described embodiment 1, the effect that described electronlmobil also can reach that described system realizes is energy-conservation, reclaim kinetic energy.
Described embodiment 1 and embodiment 2, be only preferably embodiment of the utility model, not the utility model done to any pro forma restriction, and protection domain of the present utility model is not limited to this.Anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, within making various distortion, supplement or replace and all belonging to protection domain of the present utility model.
Claims (8)
1. an energy-conservation brake system, it is characterized in that: described system comprises magnetic clutch, vacuum pump, vacuum line (3), storage tank (4) and entire car controller (8), described vacuum pump is connected with described storage tank (4) by described vacuum line (3), described entire car controller (8) is controlled adhesive or the disconnection of described magnetic clutch, and described magnetic clutch can drive described vacuum pump running to vacuumize described storage tank (4).
2. system according to claim 1, it is characterized in that: described magnetic clutch comprises armature coil, described armature coil is arranged on wheel, and described magnetic clutch is connected with described vacuum pump by described armature coil, and described vacuum pump can be synchronized with the movement along with described wheel.
3. system according to claim 1 and 2, is characterized in that: described system also comprises relay (9), and described entire car controller (8) is controlled adhesive or the disconnection of described magnetic clutch by described relay (9).
4. system according to claim 1, is characterized in that: the condition of described magnetic clutch adhesive is, the degree of vacuum in described storage tank (4) is less than threshold value, and Das Gaspedal is unclamped, and automobile gear level is greater than zero in D Drive and the speed of a motor vehicle.
5. system according to claim 1, is characterized in that: the condition that described magnetic clutch disconnects is that the degree of vacuum in storage tank reaches threshold value or Das Gaspedal is stepped on, automobile gear level is neutral gear or retreat shelves, or the speed of a motor vehicle is zero.
6. system according to claim 1, is characterized in that: described system comprises four magnetic clutchs (11,12,13,14), and described entire car controller (8) is identical to the control signal of described four magnetic clutchs.
7. system according to claim 1, is characterized in that: described system also comprises electric vacuum pump (6), and described vacuum pump and described electric vacuum pump (6) are coordinations, can to described storage tank (4), vacuumize respectively.
8. an energy-conservation electronlmobil, is characterized in that, described electronlmobil right to use requires 1 to 7 arbitrary described brake system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320587967.5U CN203472840U (en) | 2013-09-24 | 2013-09-24 | Energy-saving braking system and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320587967.5U CN203472840U (en) | 2013-09-24 | 2013-09-24 | Energy-saving braking system and electric automobile |
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| Publication Number | Publication Date |
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| CN203472840U true CN203472840U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320587967.5U Expired - Lifetime CN203472840U (en) | 2013-09-24 | 2013-09-24 | Energy-saving braking system and electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496363A (en) * | 2013-09-24 | 2014-01-08 | 三门峡速达交通节能科技股份有限公司 | Energy-saving braking system and method and electric automobile |
| CN106314406A (en) * | 2016-09-05 | 2017-01-11 | 北京新能源汽车股份有限公司 | Control method and device for braking boosting system |
-
2013
- 2013-09-24 CN CN201320587967.5U patent/CN203472840U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496363A (en) * | 2013-09-24 | 2014-01-08 | 三门峡速达交通节能科技股份有限公司 | Energy-saving braking system and method and electric automobile |
| CN106314406A (en) * | 2016-09-05 | 2017-01-11 | 北京新能源汽车股份有限公司 | Control method and device for braking boosting system |
| CN106314406B (en) * | 2016-09-05 | 2019-02-01 | 北京新能源汽车股份有限公司 | A kind of control method and device of force aid system for braking |
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| GR01 | Patent grant | ||
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Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |