Vehicle emergency starting circuit and vehicle
By introducing an emergency start circuit of a relay and control unit in the vehicle and using the emergency sensing antenna to sense the first key to switch the relay contact state, the problem of being unable to start the vehicle when the aftermarket remote control is exhausted is solved, the emergency start function is realized, and the convenience and safety of use are improved.
Patent Information
- Application Number
- CN202423119331.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing vehicle key adapter boxes or aftermarket remote controls added for mobile phone vehicle control cannot achieve emergency start of the vehicle when the battery is exhausted or damaged, resulting in users being unable to start the vehicle in an emergency, posing a safety hazard.
By introducing a relay and a control unit into the vehicle, the emergency sensing antenna is used to sense the first key and switch the relay contact state, so that the original vehicle control box is connected to the body controller to achieve emergency start of the vehicle.
Even if the aftermarket key runs out of power, the vehicle can still be started in an emergency by adding an additional key, which improves ease of use and reduces travel inconvenience and safety hazards caused by key problems.
Smart Images
Figure CN223420674U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicle circuits, in particular to a vehicle emergency starting circuit and a vehicle. Background Art
[0002] The working principle of the vehicle key adapter box or the aftermarket remote control for mobile phone control on the market is: place a normal original vehicle remote control motherboard in the newly installed host control box, and then use the newly added aftermarket remote control to control the original vehicle remote control, thereby realizing the principle of adding multiple keys.
[0003] However, if the additional aftermarket remote control runs out of power or is damaged, the aftermarket remote control will not be able to control the original vehicle remote control, resulting in the vehicle being unable to start in an emergency. In this way, products such as aftermarket remote controls pose serious hidden dangers and may prevent users from achieving the purpose of emergency starting the vehicle. Utility Model Content
[0004] The present invention provides a vehicle emergency starting circuit and a vehicle to solve the problems existing in the related art. The technical solution is as follows:
[0005] In a first aspect, an embodiment of the present utility model provides a vehicle emergency starting circuit, comprising:
[0006] A relay having multiple normally closed contacts and multiple normally open contacts; wherein the first normally closed contact is connected to the emergency sensing antenna, the first normally open contact is connected to the vehicle body controller, the second normally closed contact is connected to the control unit, and the second normally open contact is connected to the original vehicle control box;
[0007] The first key, when the first key is close to the emergency sensing antenna, the emergency sensing antenna outputs an induction current to the control unit;
[0008] The control unit is connected to the relay and is used to switch the open and closed states of the relay contacts;
[0009] When the first normally open contact is connected and the second normally open contact is connected, the original vehicle control box is connected to the body controller to realize emergency start of the vehicle.
[0010] In one embodiment, the relay includes a first relay and a second relay connected to the first relay, the first relay has a first normally closed contact and a first normally open contact, and the second relay has a second normally closed contact and a second normally open contact; the first relay and the second relay are both connected to the control unit.
[0011] In one embodiment, the original vehicle control box includes:
[0012] Second key;
[0013] The IMMO induction coil has an induction range. The second key is located within the induction range. The IMMO induction coil is used to sense the second key.
[0014] In one embodiment, the control unit comprises:
[0015] IMMO control module, connected to the second normally closed contact;
[0016] The main controller has an input end connected to the IMMO control module, and an output end connected to the first relay and the second relay respectively.
[0017] In one embodiment, the emergency sensing antenna includes a first sensing antenna and a second sensing antenna. The first sensing antenna is connected to the first normally closed contact of the first relay and is used to sense the first key; the second sensing antenna is used to sense an additional original key.
[0018] In one embodiment, the first sensing antenna and the second sensing antenna are disposed in the same sensing area of the vehicle.
[0019] In one embodiment, the main controller is connected to a vehicle's built-in battery, and the vehicle's built-in battery provides power to the main controller.
[0020] In a second aspect, an embodiment of the present invention provides a vehicle, comprising the vehicle emergency starting circuit as described above.
[0021] The advantages or beneficial effects of the above technical solution include at least:
[0022] The utility model adds a first key, and on the basis of the original vehicle, connects the emergency sensing antenna to the control unit through a relay. The control unit can switch the open and closed states of the contacts of the relay. When the first normally open contact is connected and the second normally open contact is connected, the original vehicle control box is connected to the body controller, thereby realizing emergency starting of the vehicle, so that the added first key can realize the effect of emergency starting the vehicle even when there is no power, thereby improving the convenience of use, reducing the travel inconvenience and safety hazards caused by key problems, and ensuring the safety of the vehicle.
[0023] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in accordance with the present utility model and should not be regarded as limiting the scope of the present utility model.
[0025] Figure 1 This is a circuit diagram of the vehicle emergency starting circuit of the utility model.
[0026] In the figure: 1. First key; 2. Emergency sensing antenna; 3. Body controller; 4. First relay; 5. Second relay; 6. IMMO control module; 7. Main controller; 8. IMMO induction coil; 9. Second key. DETAILED DESCRIPTION
[0027] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.
[0028] The working principle of the vehicle key adapter box or the additional factory key for mobile phone control on the market is: put a normally used original car remote control motherboard into the newly installed host control box, and then control the original car remote control through the newly added additional factory remote control, thereby realizing the principle of adding multiple keys.
[0029] However, if the additional aftermarket remote control runs out of battery or has other problems, the vehicle cannot be started in an emergency (when the original car key runs out of battery, emergency start can be achieved by sticking the original car key to the emergency sensing area of the original car). In this way, this type of product will have a very serious shortcoming, making it impossible for users to start the vehicle in an emergency.
[0030] The principle of the original car's emergency start is that the original car's emergency start antenna is originally connected to the body controller through the original car's induction antenna interface. After the original key is attached to the original car's emergency start antenna, the original car's emergency start antenna generates an induced current that flows into the body controller, and the body controller can then emergency start the vehicle.
[0031] Based on the original vehicle, this embodiment provides a vehicle emergency starting circuit, which connects the body controller and the emergency starting antenna of the original vehicle through a relay. Under the action of the additional key, the body controller and the original vehicle key built into the vehicle are connected by switching the open and closed states of the relay contacts, thereby realizing the vehicle emergency starting.
[0032] Specifically, the relay of this embodiment has multiple normally closed contacts and multiple normally open contacts, wherein, Figure 1As shown, the first normally closed contact a1 is connected to the emergency sensing antenna 2, the first normally open contact b1 is connected to the vehicle body controller 3, the second normally closed contact a2 is connected to the control unit, and the second normally open contact b2 is connected to the original vehicle control box.
[0033] It should be noted that the relay can be a multi-contact relay, and the above-mentioned complex connection is achieved through a multi-contact relay. The relay can also be composed of two separate relays. Specifically, the relay includes a first relay 4 and a second relay 5 connected to the first relay 4. The first relay 4 has a first normally closed contact a1 and a first normally open contact b1. The first normally closed contact a1 is connected to the emergency sensing antenna 2, and the first normally open contact b1 is connected to the vehicle body controller 3. The second relay 5 has a second normally closed contact a2 and a second normally open contact b2. The second normally closed contact a2 is connected to the control unit, and the second normally open contact b2 is connected to the original vehicle control box. The first relay 4 and the second relay 5 are both connected to the control unit.
[0034] It should be explained that normally closed contacts are closed when the relay is not powered. That is, when no current is flowing, the normally closed contacts are closed. When the relay coil is energized, the normally closed contacts are open. Normally open contacts, on the other hand, are open when the relay coil is not powered. When the coil is energized, the normally open contacts are closed.
[0035] The emergency sensing antenna 2 can sense the first key 1 . When the first key 1 is close to the emergency sensing antenna 2 , the emergency sensing antenna 2 outputs an induction current to the control unit via the relay.
[0036] It should be noted that in this embodiment, the first key 1 is a secondary factory key. The number of first keys 1 is not unique; multiple first keys 1 can be added based on user needs, and the user can carry them with them at will. While the added first key 1 cannot actively send control signals to the original second key 9 when it is out of power, it can still be sensed by the emergency sensing antenna 2. This is because the emergency sensing antenna 2 generates a magnetic field when powered, and the proximity of the first key 1 causes a change in the magnetic field. Therefore, even when the first key 1 is out of power, the emergency sensing antenna 2 can still sense the first key 1.
[0037] In addition, the first key 1 may also adopt passive RFID technology or NFC technology to be recognized by the emergency sensing antenna 2 when it is out of power. Detailed explanation is omitted here.
[0038] In this embodiment, the control unit is connected to the first relay 4 and the second relay 5 to switch the open and closed states of the relay contacts. The control unit can be a single chip microcomputer itself, or it can be integrated into the IMMO control module 6 to implement anti-theft verification. Specifically, the control unit includes:
[0039] IMMO control module 6, connected to the second normally closed contact a2;
[0040] The main controller 7 has an input end connected to the IMMO control module 6, and an output end connected to the first relay 4 and the second relay 5 respectively.
[0041] It should be explained that the IMMO control module 6 is an electronic device built into the car that can prevent the engine from operating without the correct key (or other verification measures). It uses the password of the chip in the key to match the password in the starter switch to control the start of the engine to achieve the purpose of anti-theft.
[0042] When the first key 1 approaches the emergency sensing antenna 2, the electromagnetic waves emitted by the antenna will activate the chip in the first key 1. The activated key chip will transmit a signal containing a unique identification code to the IMMO control module 6. The IMMO control module 6 can verify the signal containing the unique identification code. After the verification is successful, the main controller 7 can control the opening and closing status of the contacts of each relay.
[0043] It should be noted that the IMMO control module 6 itself and its anti-theft verification principles are already known in the prior art and will not be described in detail here. The main controller 7, which can also be referred to as a single-chip microcomputer, and the principle of how a single-chip microcomputer controls relay switching states are also known in the prior art. This utility model does not claim to protect the verification and control methods, but only the connection relationship between the modules.
[0044] When the verification is successful, the main controller 7 controls the first normally open contact b1 to be turned on, and the second normally open contact b2 to be turned on. At this time, the original vehicle control box is connected to the body controller 3 through the relay, thereby realizing the emergency start of the vehicle.
[0045] In this embodiment, the original vehicle control box includes:
[0046] Second key 9;
[0047] The IMMO induction coil 8 has an induction range. The second key 9 is located within the induction range. The IMMO induction coil 8 is used to sense the second key 9 .
[0048] The second key 9 is the original factory key, which is limited in number. The second key 9 is pre-installed in the vehicle and cannot be removed from the target vehicle. The second key 9 can be installed within the sensing range of the IMMO induction coil 8. When the original vehicle control box is connected to the body controller 3, the induced current generated by the IMMO induction coil 8 in response to the second key 9 flows into the body controller 3, effectively connecting the body controller 3 to the original factory key (second key 9), thereby starting the vehicle.
[0049] It should be noted that the body controller 3 is also referred to as the Passive Entry Passive Start (PEPS) module. The PEPS module consists of a controller, a radio frequency (RF) transmitter in the smart key, a vehicle-side receiver, a low-frequency antenna, and a start switch. The PEPS module enables keyless start. Specifically, when the brake or clutch is pressed and the start switch is pressed, the PEPS module automatically searches for the key and determines whether the key is inside the vehicle to facilitate automatic ignition. In this embodiment, the body controller 3 itself is prior art. The principles by which the body controller 3 starts the vehicle are well-known and will not be described in detail.
[0050] In this embodiment, the emergency sensing antenna 2 can be the vehicle's original emergency start antenna, which senses the first key 1. Alternatively, the emergency sensing antenna 2 can be a newly added antenna to the original vehicle, which senses the first key 1. Assuming that a new antenna is added to the original vehicle, the vehicle now has two antennas. To distinguish them, one antenna can be referred to as the first sensing antenna and the other as the second sensing antenna. The first sensing antenna is connected to the first normally closed contact a1 of the first relay 4 and, in this embodiment, is used to sense the first key 1. The second sensing antenna is the original vehicle's emergency start antenna, which is used to sense the additional original key.
[0051] The first sensing antenna and the second sensing antenna may be arranged at different positions in the vehicle, or may be arranged in the same sensing area of the vehicle.
[0052] In this embodiment, the main controller 7 is connected to the vehicle's built-in battery, which provides power to the main controller 7 to ensure that the main controller 7 can normally switch the contact opening and closing states of the first relay 4 and the second relay 5 after the IMMO control module 6 verification process.
[0053] Another embodiment of the present invention provides a vehicle, which is equipped with the above-mentioned vehicle emergency starting circuit. The functions of each module in the vehicle can be found in the above-mentioned corresponding descriptions and will not be repeated here.
[0054] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.
[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and such variations or substitutions are intended to fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.
Claims
1. A vehicle emergency starting circuit, characterized in that: include: A relay having multiple normally closed contacts and multiple normally open contacts; wherein the first normally closed contact is connected to the emergency sensing antenna, the first normally open contact is connected to the vehicle body controller, the second normally closed contact is connected to the control unit, and the second normally open contact is connected to the original vehicle control box; a first key, wherein when the first key is close to the emergency sensing antenna, the emergency sensing antenna outputs an induction current to the control unit; The control unit is connected to the relay and is used to switch the open and closed state of the contacts of the relay; When the first normally open contact is connected and the second normally open contact is connected, the original vehicle control box is connected to the vehicle body controller to achieve emergency start of the vehicle.
2. The vehicle emergency starting circuit according to claim 1, characterized in that: The relay includes a first relay and a second relay connected to the first relay, the first relay has the first normally closed contact and the first normally open contact, the second relay has the second normally closed contact and the second normally open contact; the first relay and the second relay are both connected to the control unit.
3. The vehicle emergency starting circuit according to claim 1, characterized in that: The original vehicle control box includes: Second key; The IMMO induction coil has an induction range, the second key is located within the induction range, and the IMMO induction coil is used to sense the second key.
4. The vehicle emergency starting circuit according to claim 2, characterized in that: The control unit comprises: an IMMO control module connected to the second normally closed contact; A main controller, whose input end is connected to the IMMO control module, and whose output end is connected to the first relay and the second relay respectively.
5. The vehicle emergency starting circuit according to claim 1, characterized in that: The emergency sensing antenna includes a first sensing antenna and a second sensing antenna. The first sensing antenna is connected to the first normally closed contact and is used to sense the first key; the second sensing antenna is used to sense an additional original key.
6. The vehicle emergency starting circuit according to claim 5, characterized in that: The first sensing antenna and the second sensing antenna are arranged in the same vehicle sensing area.
7. The vehicle emergency starting circuit according to claim 4, characterized in that: The main controller is connected to a vehicle's built-in battery, and the vehicle's built-in battery provides power to the main controller.
8. A vehicle, characterized in that: The vehicle emergency starting circuit comprises the vehicle emergency starting circuit as described in any one of claims 1 to 7.