Unpulling handle brake alarm system and commercial vehicle
By designing an alarm system for unengaged handbrakes in electric commercial vehicles, and connecting the alarm switches on the doors and handbrakes to the instrument cluster, accurate alarms are achieved and static power consumption is reduced. This solves the problems of vehicle rollover accidents and static power consumption caused by unengaged handbrakes in electric commercial vehicles, thereby improving the overall safety and reliability of the vehicle.
Patent Information
- Application Number
- CN202520505015.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Electric commercial vehicles frequently experience rollover accidents when people open their doors to exit without engaging the handbrake. Existing technologies have failed to effectively prevent this and also pose a problem of increased static power consumption.
Design a handbrake-off alarm system that connects to the instrument cluster via the vehicle door and handbrake alarm switch to achieve accurate alarm. Under normal power conditions, the instrument cluster is activated only when the handbrake is off and the door is open to provide an audible and visual alert, thus avoiding static power consumption.
It enables accurate alarms for handbrake not engaged and door open under normal power conditions, improving the safety and reliability of the vehicle, reducing static power consumption, and avoiding unnecessary power consumption increases.
Smart Images
Figure CN223877940U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile brake, especially relates to a handbrake not pulled alarm system and commercial vehicle. BACKGROUND
[0002] In the field of electric commercial vehicles, safety performance is the core consideration factor in vehicle design and operation. In recent years, it is not uncommon to see accidents caused by drivers opening the door and getting off the vehicle without pulling the handbrake, which not only poses a serious threat to the life and property safety of the driver and surrounding personnel, but also sounds the alarm for the development of the industry. Due to its own characteristics such as large weight and strong inertia, electric commercial vehicles are more likely to cause serious consequences when rolling. Therefore, how to effectively prevent such accidents and improve the safety of the vehicle has become a problem that needs to be solved in the commercial vehicle industry. SUMMARY
[0003] In order to solve the technical problems existing in the prior art, the utility model provides a handbrake not pulled alarm system and commercial vehicle, which realizes accurate alarm for handbrake not pulled and door open state in normal power state, timely reminds the driver to take measures, and effectively improves the safety and reliability of the vehicle.
[0004] In order to achieve the above purpose, the utility model provides a handbrake not pulled alarm system in the first aspect, which comprises an instrument assembly, a door alarm switch arranged on a door device and a brake alarm switch arranged on a handbrake device, the door device and the handbrake device are connected with the ground wire, the instrument assembly comprises an instrument display screen contact, an instrument buzzer contact, an instrument display screen and an instrument buzzer, the brake alarm switch and the door alarm switch are connected with the instrument display screen contact and the instrument buzzer contact respectively, the instrument display screen contact and the instrument buzzer contact are configured to be closed after receiving the brake alarm switch signal and the door alarm switch signal at the same time, so as to start the instrument display screen and the instrument buzzer.
[0005] Further, the handbrake not pulled alarm system further comprises a CAN communication switch connected between the instrument assembly and a low-voltage control module, the CAN communication switch is used for receiving a key switch signal and controlling the signal on-off between the instrument assembly and the low-voltage control module according to the key switch signal.
[0006] Further, the CAN communication switch comprises an ON electric CAN communication switch and a normal power CAN communication switch connected in parallel, wherein the ON electric CAN communication switch is a normally open switch, and the normal power CAN communication switch is a normally closed switch.
[0007] Further, the vehicle door alarm switch is a spring switch, which is disconnected when the vehicle door device is closed and is connected when the door device is closed.
[0008] The utility model provides a kind of commercial vehicle, comprising the handbrake alarm system of not being pulled as any one of the above.
[0009] Compared with the prior art, the utility model has the beneficial effects that:
[0010] The handbrake alarm system of not being pulled of the utility model realizes accurate alarm for handbrake not being pulled and door opening state in normal power state, timely reminds driver to take measures, effectively improves the safety and reliability of the whole vehicle. At the same time, only when the handbrake device is in the state of not being pulled and the vehicle door device is in the state of being opened, the instrument assembly can be woken up, so that the instrument display screen and the instrument buzzer work. If either of the two conditions is not met, the instrument assembly cannot be woken up and cannot alarm, and there is no static power consumption. Compared with other functions of handbrake not being pulled and door opening alarm by connecting related relays and electric horns through hard-wire signal, the defect that the static power consumption of the whole vehicle is increased continuously even if all conditions are not met is avoided.
[0011] 2、The handbrake alarm system of not being pulled of the utility model, under normal power state, the instrument assembly only displays text and alarms, without sending any effective message and network management message, which not only ensures the instrument assembly to work in low power consumption state, but also avoids the low-voltage control module from being woken up by message, thereby further increasing the static power consumption of the whole vehicle. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is the principle diagram of the handbrake alarm system of not being pulled of the utility model;
[0013] In the drawings:
[0014] 1, ground wire; 2, vehicle door device; 3, handbrake device; 4, brake alarm switch; 5, vehicle door alarm switch; 6, instrument assembly; 7, instrument display screen contact; 8, instrument buzzer contact; 9, instrument display screen; 10, instrument buzzer; 11, ON electric CAN communication switch; 12, normal power CAN communication switch; 13, high-power controller; DETAILED DESCRIPTION
[0015] In order to facilitate the understanding of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0016] The present application is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect thus defined can be combined with any other aspect or aspects, unless explicitly stated otherwise. In particular, any feature that is considered to be preferred or advantageous can be combined with other feature or features that are considered to be preferred or advantageous.
[0017] Reference Figure 1 As shown in the drawings, the present application discloses a hand brake alarm system, including instrument assembly 6, vehicle door alarm switch 5 arranged on vehicle door device 2 and brake alarm switch 4 arranged on hand brake device 3, preferably, vehicle door alarm switch 5 is spring switch. The storage battery is connected with vehicle door device 2 and hand brake device 3 through low-voltage wire harness, and vehicle door device 2 and hand brake device 3 are connected with ground wire 1. Instrument assembly 6 includes instrument display screen contact 7, instrument buzzer contact 8, instrument display screen 9 and instrument buzzer 10, brake alarm switch 4 and vehicle door alarm switch 5 are connected with instrument display screen contact 7 and instrument buzzer contact 8 respectively, and instrument display screen contact 7 and instrument buzzer contact 8 are configured to be closed after receiving brake alarm switch 4 signal and vehicle door alarm switch 5 signal simultaneously, so as to start instrument display screen 9 and instrument buzzer 10.
[0018] Specifically, when the key switch is in OFF gear, the storage battery is in the state of providing normal power. When hand brake device 3 is in the state of pulling up hand brake and vehicle door device 2 is in the state of closing, brake alarm switch 4 and vehicle door alarm switch 5 are in the state of opening, at this time, instrument display screen contact 7 and instrument buzzer contact 8 are in the state of opening, and instrument display screen 9 and instrument buzzer 10 do not perform corresponding functions.
[0019] When hand brake device 3 is in the state of not pulling and vehicle door device 2 is in the state of closing, brake alarm switch 4 is in the state of closing, and the low-level effective signal of hand brake device 3 can normally pass into instrument assembly 6, but vehicle door alarm switch 5 is still in the state of opening, and the non-low-level effective signal of vehicle door device 2 passes into instrument assembly 6, at this time, instrument display screen contact 7 and instrument buzzer contact 8 are in the state of opening, and instrument display screen 9 and instrument buzzer 10 do not perform corresponding functions.
[0020] When the hand brake device 3 is in the pulled state and the door device 2 is in the open state, the brake alarm switch 4 is in the open state, the hand brake device 3 is a low-level effective signal to the instrument assembly 6, and the door alarm switch 5 is in the closed state, the door device 2 is a low-level effective signal to the instrument assembly 6, at this time, the instrument display screen contact 7 and the instrument buzzer contact 8 are in the open state, and the instrument display screen 9 and the instrument buzzer 10 do not perform the corresponding function.
[0021] When the hand brake device 3 is in the pulled state and the door device 2 is in the open state, the brake alarm switch 4 is in the open state, the hand brake device 3 is a low-level effective signal to the instrument assembly 6, and the door alarm switch 5 is in the closed state, the door device 2 is a low-level effective signal to the instrument assembly 6, at this time, the instrument display screen contact 7 and the instrument buzzer contact 8 are in the open state, and the instrument display screen 9 and the instrument buzzer 10 do not perform the corresponding function.
[0022] In some embodiments, the pulled hand brake alarm system further comprises a CAN communication switch connected between the low-voltage control module 13 and the instrument assembly 6, which is used to receive a key switch signal and control the signal on-off between the low-voltage control module 13 and the instrument assembly 6 according to the key switch signal. Wherein, the CAN communication switch includes parallel ON electric CAN communication switch 11 and constant power CAN communication switch 12, and the low-voltage control module 13 includes a gateway controller and an RCM. In this embodiment, the ON electric CAN communication switch 11 is a normally open switch, and the constant power CAN communication switch 12 is a normally closed switch.
[0023] When the key switch is in the ON state, the vehicle is in the ON power state, the ON power CAN communication switch 11 is in the connected state, and the instrument assembly 6 and the low-voltage control module 13 are in the normal communication state. When the key switch is in the OFF state, the vehicle is in the normal power state, the normal power CAN communication switch 12 is in the disconnected state, so that the remaining controllers cannot be woken up, and the static power consumption can be reduced. In the normal power state, the instrument assembly 6 only performs text display and sound alarm alone, and does not send any valid messages and network management messages, so that the instrument assembly 6 can work in the low-power state, and the low-voltage control module 13 is prevented from being woken up by the messages, and the problem of further increasing the static power consumption of the vehicle is solved.
[0024] The utility model discloses still a kind of commercial vehicle, including the hand brake alarm system of not pulling as any one of the above.
[0025] The above shows and describes the basic principle, main features and advantages of the utility model. It should be appreciated by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A non-pulled handbrake warning system characterized in that, The alarm system comprises an instrument assembly (6), a door alarm switch (5) arranged on a door device (2) and a brake alarm switch (4) arranged on a hand brake device (3), the door device (2) and the hand brake device (3) are connected with a ground wire (1), the instrument assembly (6) comprises an instrument display screen contact (7), an instrument buzzer contact (8), an instrument display screen (9) and an instrument buzzer (10), the brake alarm switch (4) and the door alarm switch (5) are connected with the instrument display screen contact (7) and the instrument buzzer contact (8) respectively, the instrument display screen contact (7) and the instrument buzzer contact (8) are configured to be closed after receiving the brake alarm switch (4) signal and the door alarm switch (5) signal at the same time, so as to start the instrument display screen (9) and the instrument buzzer (10).
2. The no hand brake warning system of claim 1, wherein, The non-pulled hand brake alarm system further comprises a CAN communication switch connected between the instrument assembly (6) and a low-voltage control module (13), the CAN communication switch is used for receiving a key switch signal and controlling the signal on-off between the instrument assembly (6) and the low-voltage control module (13) according to the key switch signal.
3. The no-parking-brake warning system of claim 2, wherein, The CAN communication switch comprises an ON electric CAN communication switch (11) and a constant electric CAN communication switch (12) connected in parallel, wherein the ON electric CAN communication switch (11) is a normally open switch, and the constant electric CAN communication switch (12) is a normally closed switch.
4. The no-parking-brake warning system of claim 1, wherein, The door alarm switch (5) is a spring switch, which is disconnected when the door device is closed and is closed when the door device is closed.
5. A commercial vehicle characterized in that The non-pulled hand brake alarm system comprises the instrument assembly (6), the door alarm switch (5) arranged on the door device (2) and the brake alarm switch (4) arranged on the hand brake device (3), the door device (2) and the hand brake device (3) are connected with a ground wire (1), the instrument assembly (6) comprises an instrument display screen contact (7), an instrument buzzer contact (8), an instrument display screen (9) and an instrument buzzer (10), the brake alarm switch (4) and the door alarm switch (5) are connected with the instrument display screen contact (7) and the instrument buzzer contact (8) respectively, the instrument display screen contact (7) and the instrument buzzer contact (8) are configured to be closed after receiving the brake alarm switch (4) signal and the door alarm switch (5) signal at the same time, so as to start the instrument display screen (9) and the instrument buzzer (10).