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CN-121973756-A - Power system and vehicle

CN121973756ACN 121973756 ACN121973756 ACN 121973756ACN-121973756-A

Abstract

The application relates to a power system and a vehicle. The power system comprises a fuel module, an electric power module and an emergency control module. The emergency control module directly controls the on and off of the control loop by the emergency switch, thereby controlling the power supply state of the storage battery to the pumping device, the positive electrode switch and the negative electrode switch, ensuring that the fuel cut-off and the high-voltage power cut-off can be synchronously triggered under emergency working conditions such as braking failure and the like, and realizing the effect of quick energy-cutting braking of the vehicle.

Inventors

  • LI MIN
  • YU YONGZHI
  • LI YI
  • SHI ZITAO
  • WU JIALIN
  • LI WEI

Assignees

  • 重庆蓝电汽车科技有限公司

Dates

Publication Date
20260505
Application Date
20260225

Claims (10)

  1. 1. A power system, comprising: An internal combustion engine (1); A fuel module comprising a tank (21) and pumping means (22), said pumping means (22) being configured to pump fuel from said tank (21) to said internal combustion engine (1); the power module comprises a power supply loop (31), a power battery (32) and an electric driving device (33), wherein the power battery (32) and the electric driving device (33) are arranged on the power supply loop (31); The emergency control module comprises a control loop (41), a storage battery (42), a positive electrode switch (43), a negative electrode switch (44) and an emergency switch (45), wherein the storage battery (42), the positive electrode switch (43) and the negative electrode switch (44) are arranged on the control loop (41), the emergency switch (45) is configured to control the control loop (41) to be turned on or off, and the pumping device (22) is electrically connected with the control loop (41), The positive electrode switch (43) and the negative electrode switch (44) are configured to be turned on or off according to the control loop (41) so as to control the positive electrode switch (43) and the negative electrode switch (44) to act, so that the positive electrode switch (43) controls the positive electrode end of the electric driving device (33) to be turned on or off with the power battery (32), and the negative electrode switch (44) controls the negative electrode end of the electric driving device (33) to be turned on or off with the power battery (32).
  2. 2. The power system of claim 1, wherein the emergency switch (45) includes a switch control member (451), a transmission mechanism (452) and a first circuit gate (453), the transmission mechanism (452) is drivingly connected between the switch control member (451) and the first circuit gate (453), the first circuit gate (453) is located in the control circuit (41), and the switch control member (451) is configured to drive the first circuit gate (453) to close or open via the transmission mechanism (452).
  3. 3. The power system according to claim 2, characterized in that the positive pole switch (43) and the negative pole switch (44) are each configured as a contactor.
  4. 4. The power system of claim 2, wherein the emergency switch (45) further comprises a second circuit gate (454), the second circuit gate (454) is in driving connection with the transmission mechanism (452), the second circuit gate (454) is located in the power supply circuit (31), and the switch control member (451) is used for driving the second circuit gate (454) to close or open through the transmission mechanism (452).
  5. 5. The power system of claim 4, wherein the second circuit gate (454) is in a closed state when the first circuit gate (453) is in a closed state.
  6. 6. The power system according to claim 2, characterized in that the emergency switch (45) further comprises a third circuit gate (455) and a fourth circuit gate (456), the fourth circuit gate (456) being located in the power supply circuit (31) and between the positive switch (43) and the power battery (32); The power module further comprises a protection loop (34) and a protection resistor (35), wherein the third circuit gate (455) and the protection resistor (35) are positioned in the protection loop (34), and the protection loop (34) is connected in parallel with two ends of the fourth circuit gate (456); The third circuit gate (455) and the fourth circuit gate (456) are in transmission connection with the transmission mechanism (452), the switch control member (451) drives the third circuit gate (455) and the fourth circuit gate (456) to close or open through the transmission mechanism (452), wherein when the first circuit gate (453) is in a closed state, the third circuit gate (455) is in an open state, and the fourth circuit gate (456) is in a closed state.
  7. 7. The power system of claim 6, wherein the emergency switch (45) further comprises a fifth circuit gate (457), the fifth circuit gate (457) being in driving connection with the transmission mechanism (452), the fifth circuit gate (457) being located in the power supply circuit (31), the switch control (451) being arranged to drive the fifth circuit gate (457) to close or open via the transmission mechanism (452); When the first circuit gate (453) is in a closed state, the fifth circuit gate (457) is in a closed state.
  8. 8. The power system of claim 7, wherein the fifth circuit gate (457) is located between the fourth circuit gate (456) and the power cell (32).
  9. 9. The power system of claim 7, wherein the third circuit gate (455), the fourth circuit gate (456), the first circuit gate (453), and the fifth circuit gate (457) are operated in sequence.
  10. 10. A vehicle, characterized by comprising: the power system according to any one of claims 1 to 9.

Description

Power system and vehicle Technical Field The application relates to the technical field of vehicles, in particular to a power system and a vehicle. Background As the amount of maintenance of automobiles continues to increase, accidents caused by braking failure during high-speed driving of the automobiles are increasingly frequent. The existing vehicles generally lack an effective emergency energy cutting mechanism, once a braking system is completely disabled, parking can be realized only by means of naturally exhausting fuel oil or battery power, the process can last for a plurality of hours, during which the vehicles are difficult to control, and serious safety accidents such as chain collision, road flushing and the like are extremely easy to cause. Modern vehicles generally adopt an electronic control system to manage fuel supply or electric energy output so as to realize efficient and accurate power dispatching. In an emergency, if the vehicle loses effective braking capability, timely termination of power output helps to reduce accident risk. However, under certain extreme conditions, even if the driver takes emergency action, the vehicle may still suffer from a situation in which the power is not effectively cut off, with a potential safety hazard. Some existing emergency energy interruption means may be accompanied by fuel leakage, electrical damage or other adverse effects in practical application, and it is difficult to consider both response reliability and system safety. Disclosure of Invention Based on this, it is necessary to provide a power system in response to the above-described problems. A power system comprising: An internal combustion engine; a fuel module including a tank and a pumping device configured to pump fuel from the tank to an internal combustion engine; The power module comprises a power supply loop, a power battery and an electric driving device, wherein the power battery and the electric driving device are arranged in the power supply loop; The emergency control module comprises a control loop, a storage battery, a positive electrode switch, a negative electrode switch and an emergency switch, wherein the storage battery, the positive electrode switch and the negative electrode switch are arranged on the control loop, the emergency switch is configured to control the control loop to be conducted or disconnected, and the pumping device is electrically connected with the control loop, The positive electrode switch and the negative electrode switch are configured to be turned on or off according to the control loop so as to control the positive electrode switch and the negative electrode switch to act, so that the positive electrode switch controls the positive electrode of the electric driving device to be turned on or off with the power battery, and the negative electrode switch controls the negative electrode of the electric driving device to be turned on or off with the power battery. The power system comprises a fuel module, an electric power module and an emergency control module. The emergency control module directly controls the on and off of the control loop by the emergency switch, thereby controlling the power supply state of the storage battery to the pumping device, the positive electrode switch and the negative electrode switch, ensuring that the fuel cut-off and the high-voltage power cut-off can be synchronously triggered under emergency working conditions such as braking failure and the like, and realizing the effect of quick energy-cutting braking of the vehicle. In one embodiment, the emergency switch comprises a switch control piece, a transmission mechanism and a first circuit gate, wherein the transmission mechanism is connected between the switch control piece and the first circuit gate in a transmission mode, and the first circuit gate is positioned in the control loop, and the switch control piece drives the first circuit gate to close or open through the transmission mechanism. According to the power system, the emergency switch structure of mechanical transmission is adopted, the action of the emergency switch is independent of an electronic control signal or an external power supply, and the on-off state of the emergency switch is completely realized by mechanical connection and transmission. Compared with an electronic switch (such as a relay or a solid-state switch) triggered by an electric signal, the emergency switch in the embodiment can still reliably act in a purely mechanical manner under the extreme working conditions of failure of a main control system, abnormal power supply, electromagnetic interference and the like, so that the response delay or refusal risk caused by the failure of an electronic module is effectively avoided, and the certainty and reliability of emergency power failure operation are obviously improved. In one embodiment, both the positive and negative switches are configured as contactors. The power system is character