CN211567878U - Emergency power supply system for vehicle window of hydrogen energy source vehicle - Google Patents
Emergency power supply system for vehicle window of hydrogen energy source vehicle Download PDFInfo
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- CN211567878U CN211567878U CN201922372189.8U CN201922372189U CN211567878U CN 211567878 U CN211567878 U CN 211567878U CN 201922372189 U CN201922372189 U CN 201922372189U CN 211567878 U CN211567878 U CN 211567878U
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Abstract
The utility model discloses an emergency power supply system for a hydrogen energy automobile window, which is used for solving the safety of a hydrogen fuel cell passenger car under extreme conditions, and preferentially using a low-voltage power supply of the car to supply power for a window motor through a specific control method under the normal condition of the car so as to ensure the normal work of the window; meanwhile, under the condition of abnormal power failure of the low-voltage power supply, seamless cut-in of an emergency power supply system is carried out, the super-capacitor system can be used for supplying power to the window motor through the bidirectional DC power supply so as to continuously keep the window opening function, the reliability of quick opening of the window under the extreme condition of the vehicle is ensured, and the potential safety hazard that the window cannot be opened due to abnormal power failure of the low-voltage power supply is avoided.
Description
Technical Field
The utility model relates to a new forms of energy car technical field, concretely relates to emergency power supply system for hydrogen energy source car door window.
Background
Under normal conditions, the electric window of the hydrogen fuel cell passenger vehicle is powered by a whole vehicle low-voltage power supply so as to drive the electric window motor to normally work. However, when the vehicle is immersed in water due to non-human factors or when the vehicle is collided, the power of a window motor circuit is lost, window glass cannot be put down, and a door cannot be opened under the action of water pressure, so that passengers in the vehicle cannot escape and are in distress finally. Therefore, how to solve the problem that the hydrogen fuel cell passenger vehicle needs to solve is to smoothly open the vehicle window under the condition that the hydrogen fuel cell passenger vehicle is in danger and provide an escape passage for passengers. Therefore, the utility model provides a reliable and durable emergency power supply system and control method of hydrogen fuel cell passenger car power window aims at solving the problem that the power window of vehicle still can open smoothly under the low-voltage circuit condition of losing power.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an emergent power supply system for hydrogen energy automobile door window.
The utility model provides an emergent power supply system for hydrogen energy source car door window, including emergent power supply system, door window motor, low voltage power supply, PDU, hydrogen fuel cell, CAN bus, contactor K1, contactor K2, driving motor and VCU, PDU's input is connected to hydrogen fuel cell's output, and PDU's first output links to each other with driving motor's input, and PDU's second output links to each other with the first link of two-way DC power supply, and two-way DC power supply's second link links to each other with super capacitor system, and PDU's control end passes through the CAN bus and is connected with VCU, hydrogen fuel cell still links to each other through the CAN bus with VCU, two-way DC power supply's output links to each other with door window motor's first input, low voltage power supply's output passes through contactor K1 and contactor K2 and door window motor's second input and links to each other, VCU, two-way DC power, The control ends of the super capacitor system, the window motor and the low-voltage power supply are connected to the CAN bus; when the low-voltage power supply normally supplies power, the contactor K1 and the contactor K2 are normally closed switches, and the output voltage of the emergency power supply system is always lower than the voltage value of the low-voltage power supply.
Further, the bidirectional DC power source includes a low voltage DC converter and a high voltage bidirectional DC converter.
Further, the super capacitor system includes a super capacitor module and a capacitor management system CMS.
Further, the emergency power supply system further comprises a contactor K3, a relay K4, a pre-charging resistor and a contactor K5, wherein the pre-charging resistor is used for pre-charging the bidirectional DC power supply; the relay K4 is connected in series with the pre-charging resistor and then connected in parallel with the contactor K5, two parallel points are respectively used as a first connecting end and a second connecting end, the first connecting end is connected with the super capacitor module, the second connecting end is connected with the low-voltage DC converter and the high-voltage bidirectional DC converter, one end of the contactor K3 is connected with the super capacitor module, and the other end of the contactor K3 is connected with the high-voltage bidirectional DC converter and the low-voltage DC converter; the low-voltage DC converter comprises a first group of connecting ends and a second group of connecting ends, the high-voltage bidirectional DC converter comprises a first group of connecting ends and a second group of connecting ends, the positive pole of the second group of connecting ends of the low-voltage DC converter is connected with the positive pole of the second group of connecting ends of the high-voltage bidirectional DC converter, and the negative pole of the second group of connecting ends of the low-voltage DC converter is connected with the negative pole of the second group of connecting ends of the high-voltage bidirectional DC converter.
Furthermore, in the emergency power supply system, the bidirectional DC power supply provides a high-voltage interface for charging and discharging the super capacitor system, and also provides a low-voltage interface for supplying power to the window motor.
Further, a lithium ion super capacitor is adopted as an energy storage element in the super capacitor system.
The utility model provides a beneficial effect that technical scheme brought is: the reliability of quick opening of the window under the extreme condition of the vehicle is ensured, and the potential safety hazard that the window cannot be opened due to abnormal low-voltage power failure is avoided.
Drawings
FIG. 1 is a structural diagram of an emergency power supply system for windows of a hydrogen-powered vehicle according to the present invention;
FIG. 2 is a structural diagram of an emergency power supply system of the emergency power supply system for a window of a hydrogen energy vehicle of the present invention;
in the figure: 100-emergency power supply system, 110-bidirectional DC power supply, 111-low voltage DC converter, 112-high voltage bidirectional DC converter, 120-super capacitor system, 121-super capacitor module, 122-CMS, 200-window motor, 300-low voltage power supply, 400-PDU, 500-hydrogen fuel cell, 600-driving motor, 700-VCU.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides an emergency power supply system for a window of a hydrogen energy vehicle.
An emergency power supply system for windows of a hydrogen energy automobile comprises an emergency power supply system 100, a window motor 200, a low-voltage power supply 300, a PDU400, a hydrogen fuel cell 500, a CAN bus, a contactor K1, a contactor K2, a driving motor 600 and a VCU700, wherein the emergency power supply system 100 comprises a bidirectional DC power supply 110 and a super capacitor system 120, the bidirectional DC power supply 110 comprises a low-voltage DC converter 111 and a high-voltage bidirectional DC converter 112, the super capacitor system 120 comprises a super capacitor module 121 and a capacitor management system CMS122, the output end of the hydrogen fuel cell 500 is connected with the input end of the PDU400, the first output end of the PDU400 is connected with the input end of the driving motor 600, the second output end of the PDU400 is connected with the first connection end of the bidirectional DC power supply 110, the second connection end of the bidirectional DC power supply 110 is connected with the super capacitor system 120, the control end of the PDU400 is connected with the VCU700 through the CAN bus, the hydrogen fuel cell 500 is further connected, the output end of the bidirectional DC power supply 110 is connected with the first input end of the window motor 200, the output end of the low-voltage power supply 300 is connected with the second input end of the window motor 200 through a contactor K1 and a contactor K2, and the control ends of the VCU700, the bidirectional DC power supply 110, the super capacitor system 120, the window motor 200 and the low-voltage power supply 300 are all connected to a CAN bus; the emergency power supply system 100 further comprises a contactor K3, a relay K4, a pre-charging resistor and a contactor K5, wherein the pre-charging resistor is used for pre-charging the bidirectional DC power supply 110; the relay K4 is connected in series with the pre-charging resistor and then connected in parallel with the contactor K5, two parallel points are respectively used as a first connecting end and a second connecting end, the first connecting end is connected with the super capacitor module 121, the second connecting end is connected with the low-voltage DC converter 111 and the high-voltage bidirectional DC converter 112, one end of the contactor K3 is connected with the super capacitor module 121, and the other end of the contactor K3 is connected with the high-voltage bidirectional DC converter 112 and the low-voltage DC converter 111; the low-voltage DC converter 111 comprises a first group of connection ends and a second group of connection ends, the high-voltage bidirectional DC converter 112 comprises a first group of connection ends and a second group of connection ends, the anode of the second group of connection ends of the low-voltage DC converter 111 is connected with the anode of the second group of connection ends of the high-voltage bidirectional DC converter 112, and the cathode of the second group of connection ends of the low-voltage DC converter 111 is connected with the cathode of the second group of connection ends of the high-voltage bidirectional DC converter 112; under normal conditions, namely when the low-voltage power supply 300 supplies power normally, the contactor K1 and the contactor K2 are in a closed state, the power supply of the window motor 200 is supplied by the low-voltage power supply 300 alone, the low-voltage emergency power supply of the emergency power supply system 100 is in a continuous output state, the output voltage of the emergency power supply system 100 is always slightly lower than the voltage value of the low-voltage power supply 300, and the emergency power supply system 100 is always in a standby state; once the VCU700 detects that the power supply of the low-voltage power supply 300 is abnormal, the contactor K1 and the contactor K2 are disconnected, and the emergency power supply system 100 immediately responds to power supply for the window motor 200, so as to ensure that the vehicle window is opened quickly.
In the emergency power supply system 100, the bidirectional DC power supply 110 provides a high-voltage interface for charging and discharging the super capacitor system 120, and also provides a low-voltage interface for supplying power to the window motor 200, and the super capacitor system 120 uses a lithium ion super capacitor as an energy storage element.
An emergency power supply method for a hydrogen energy source automobile window is realized based on an emergency power supply system for the hydrogen energy source automobile window, and when the whole automobile is in a steady state, energy is transmitted by a hydrogen fuel cell 500 and charges a super capacitor system 120 through a high-voltage bidirectional DC converter 112 in a bidirectional DC power supply 110.
The super capacitor system collects the voltage and the capacitor capacity value in the capacitor module through the capacitor management system CMS122, and transmits the signal to the entire VCU700 through the CAN bus, and the entire VCU700 judges whether to charge the super capacitor system 120 according to the capacitor capacity.
When the whole vehicle is braked emergently, the driving motor 600 feeds back energy to charge the super capacitor system 120 through the high-voltage bidirectional DC converter 112 in the bidirectional DC power supply 110.
When the whole vehicle is electrified at low voltage, the VCU700 detects that the whole vehicle system is normal, the VCU700 controls the super capacitor system 120 to perform pre-charging through the CAN bus, and the pre-charging process is as follows: the method comprises the steps that a contactor K3 is closed in the first step, a relay K4 is closed in the second step, the bidirectional DC power supply 110 is precharged, after the CMS122 detects that the precharging is completed, the contactor K5 is closed, the relay K4 is opened, the charging of the super capacitor system 120 is completed, the precharging resistor plays a role in limiting current, the contactor K5 is prevented from being directly connected with a capacitor during charging, and the contactor K5 is damaged due to instant short circuit;
when the whole vehicle is in cold start, accelerated and uphill, the super capacitor system 120 provides instant energy for the bidirectional DC power supply 110, the high-voltage bidirectional DC converter 112 in the bidirectional DC power supply 110 outputs the energy in a voltage stabilizing manner to the driving motor 600 in the whole vehicle for power supply, and the contactor K3 and the contactor K5 are both in a closed state during charging and discharging.
In the present invention, the above-mentioned embodiments and features of the embodiments can be combined with each other without conflict, and the above-mentioned is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The emergency power supply system for the hydrogen energy automobile window is characterized by comprising an emergency power supply system, a window motor, a low-voltage power supply, a PDU (Power distribution Unit), a hydrogen fuel cell, a CAN (controller area network) bus, a contactor K1, a contactor K2, a driving motor and a VCU (virtual vehicle Unit), wherein the output end of the hydrogen fuel cell is connected with the input end of the PDU, the first output end of the PDU is connected with the input end of the driving motor, the second output end of the PDU is connected with the first connecting end of a bidirectional DC (direct Current) power supply, the second connecting end of the bidirectional DC power supply is connected with a super capacitor system, the control end of the PDU is connected with the VCU through the CAN bus, the hydrogen fuel cell is further connected with the VCU through the CAN bus, the output end of the bidirectional DC power supply is connected with the first input end of the window motor, the output end of the low-voltage power supply is connected with the second, The control ends of the super capacitor system, the window motor and the low-voltage power supply are connected to the CAN bus; when the low-voltage power supply normally supplies power, the contactor K1 and the contactor K2 are normally closed switches, and the output voltage of the emergency power supply system is always lower than the voltage value of the low-voltage power supply.
2. The emergency power system for a hydrogen powered automotive window of claim 1 wherein said bidirectional DC power source comprises a low voltage DC converter and a high voltage bidirectional DC converter.
3. An emergency power system for a hydrogen powered automotive window as claimed in claim 2 wherein the supercapacitor system comprises a supercapacitor module and a capacitance management system CMS.
4. The emergency power supply system for windows of a hydrogen powered vehicle as claimed in claim 3, further comprising a contactor K3, a relay K4, a pre-charge resistor for pre-charging the bidirectional DC power supply, and a contactor K5; the relay K4 is connected in series with the pre-charging resistor and then connected in parallel with the contactor K5, two parallel points are respectively used as a first connecting end and a second connecting end, the first connecting end is connected with the super capacitor module, the second connecting end is connected with the low-voltage DC converter and the high-voltage bidirectional DC converter, one end of the contactor K3 is connected with the super capacitor module, and the other end of the contactor K3 is connected with the high-voltage bidirectional DC converter and the low-voltage DC converter; the low-voltage DC converter comprises a first group of connecting ends and a second group of connecting ends, the high-voltage bidirectional DC converter comprises a first group of connecting ends and a second group of connecting ends, the positive pole of the second group of connecting ends of the low-voltage DC converter is connected with the positive pole of the second group of connecting ends of the high-voltage bidirectional DC converter, and the negative pole of the second group of connecting ends of the low-voltage DC converter is connected with the negative pole of the second group of connecting ends of the high-voltage bidirectional DC converter.
5. The emergency power supply system for the windows of the hydrogen-powered automobile according to claim 1, wherein in the emergency power supply system, the bidirectional DC power supply provides a high-voltage interface for charging and discharging the super capacitor system, and also provides a low-voltage interface for supplying power to the window motor.
6. The emergency power supply system for the windows of the hydrogen-powered automobile according to claim 1, wherein a lithium ion supercapacitor is used as an energy storage element in the supercapacitor system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922372189.8U CN211567878U (en) | 2019-12-25 | 2019-12-25 | Emergency power supply system for vehicle window of hydrogen energy source vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922372189.8U CN211567878U (en) | 2019-12-25 | 2019-12-25 | Emergency power supply system for vehicle window of hydrogen energy source vehicle |
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| CN211567878U true CN211567878U (en) | 2020-09-25 |
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| CN201922372189.8U Active CN211567878U (en) | 2019-12-25 | 2019-12-25 | Emergency power supply system for vehicle window of hydrogen energy source vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962785A (en) * | 2019-12-25 | 2020-04-07 | 戴美克动力系统技术（武汉）有限公司 | Emergency power supply system and method for hydrogen energy automobile window |
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2019
- 2019-12-25 CN CN201922372189.8U patent/CN211567878U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962785A (en) * | 2019-12-25 | 2020-04-07 | 戴美克动力系统技术（武汉）有限公司 | Emergency power supply system and method for hydrogen energy automobile window |
| CN110962785B (en) * | 2019-12-25 | 2024-04-23 | 戴美克动力系统技术（武汉）有限公司 | Emergency power supply system and method for hydrogen energy automobile window |
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