阅读说明：本技术 一种实现间接胎压监测的重置与提示方法、系统及汽车 (Resetting and prompting method and system for realizing indirect tire pressure monitoring and automobile ) 是由 温婷 胡浩 于 2020-06-30 设计创作，主要内容包括：本发明提供了一种实现间接胎压监测的重置与提示方法、系统及汽车,其是应用仪表总成中仪表里程复位杆对胎压监测系统进行重置并进行声音提示的一种方法。仪表总成将接收到的驾驶员胎压监测重置请求通过CAN总线发送给网关总成,网关总成将此信号发送给车身控制稳定总成以对胎压监测系统模块进行重置,车身稳定控制总成将重置结果通过CAN总线发送给网关总成,网关总成将重置结果发送给仪表总成,以进行对胎压监测系统重置结果的提示。(The invention provides a resetting and prompting method and system for realizing indirect tire pressure monitoring and an automobile, and relates to a method for resetting a tire pressure monitoring system and carrying out voice prompting by applying an instrument mileage resetting rod in an instrument assembly. The instrument assembly sends the received driver tire pressure monitoring reset request to the gateway assembly through the CAN bus, the gateway assembly sends the signal to the vehicle body control stabilization assembly to reset the tire pressure monitoring system module, the vehicle body stabilization control assembly sends the reset result to the gateway assembly through the CAN bus, and the gateway assembly sends the reset result to the instrument assembly to prompt the tire pressure monitoring system reset result.)

1. A reset and prompt method for realizing indirect tire pressure monitoring is applied to vehicle types without DVD screens and instrument-free liquid crystal screens, and is characterized by comprising the following steps:

step S1, the power supply assembly (1) detects whether the power supply of the whole vehicle is in a power-on state; if yes, go to step S2; if not, returning to execute the step S1;

step S2, the meter assembly (5) judges whether the driver presses the meter mileage reset lever (6), if the driver presses the meter mileage reset lever (6), the step S3 is executed; if the driver does not press the meter mileage reset lever (6), returning to execute the step S1;

step S3, the meter assembly (5) judges whether the time that the driver presses the meter mileage reset lever (6) exceeds a first time length, if the time that the driver presses the meter mileage reset lever (6) exceeds the first time length, the step S5 is executed; if not, go to step S4;

step S4, the meter assembly (5) does not send a reset request signal to the CAN bus, and then returns to execute S1;

step S5, the instrument assembly (5) judges whether the interval time between the driver pressing the instrument mileage reset rod (6) this time and the driver pressing the instrument mileage reset rod (6) last time exceeds a second time length; if the interval time between the driver pressing the meter mileage reset rod (6) this time and the driver pressing the meter mileage reset rod (6) last time exceeds a second time length, executing step S6; if not, the step S4 is executed again;

step S6, the meter assembly (5) sends a reset request signal to the CAN bus, and then step S1 is executed;

step S7, the gateway assembly (4) receives the reset request signal transmitted on the CAN bus and then forwards the reset request signal to the vehicle body stability control assembly (2), the tire pressure monitoring module (3) in the vehicle body stability control assembly (2) resets the tire pressure monitoring system, the tire pressure monitoring module (3) informs the interior of the reset result to the vehicle body stability control assembly (2), the vehicle body stability control assembly (2) sends the reset result to the gateway assembly (4) through the CAN bus, the gateway assembly (4) forwards the reset result to the instrument assembly (5), and the instrument assembly (5) judges whether the reset result is received in a third time period or not; if yes, go to step S9; if not, go to step S8;

step S8, the meter assembly (5) sounds for a fourth time length through sound for prompting the driver that the tire pressure monitoring system fails to be reset, and then returns to execute the step S1;

step S9, the meter assembly (5) analyzes the reset result, if the reset result is successful, the step S10 is executed, and if the reset result is failure, the step S8 is returned to and executed;

in step S10, the meter assembly sounds a short sound to prompt the driver that the tire pressure monitoring system is successfully reset, and then returns to step S1.

2. The utility model provides a reset and reminder system of realization indirect tire pressure monitoring which characterized in that includes:

the system comprises an instrument assembly (5), a gateway assembly (4) connected with the instrument assembly (5) through a CAN bus, and a vehicle body stability control assembly (2) connected with the gateway assembly (4) through the CAN bus;

the vehicle body stability control assembly (2), the gateway assembly (4) and the instrument assembly (5) are respectively connected with the power supply assembly (1) through hard wires;

the meter assembly (5) receives a tire pressure monitoring reset request signal input by a user through the meter mileage reset rod (6) and forwards the tire pressure monitoring reset request signal to the gateway assembly (4); the gateway assembly (4) forwards the received tire pressure monitoring resetting request signal to the vehicle body stability control assembly (2);

tire pressure monitoring module (3) in automobile body stable control assembly (2) resets tire pressure monitoring system, and tire pressure monitoring module (3) inform automobile body stable control assembly inside the reset result, and the gateway assembly passes through the CAN bus with the reset result that automobile body stable control assembly (2) sent and forwards instrument assembly (5), and instrument assembly (5) carry out tire pressure monitoring reset result according to the reset result and indicate.

3. An automobile, characterized by comprising the resetting and prompting system for realizing indirect tire pressure monitoring as claimed in claim 2.

Technical Field

The invention relates to the field of automobile electronic control systems, in particular to a resetting and prompting method and system for realizing indirect tire pressure monitoring and an automobile.

Background

The national highway traffic safety administration of America has issued a report that the tire pressure is lower than the standard value by 25 percent, and the tire burst probability is increased by 3 times. According to statistics, the proportion of the vehicles caused by tire burst in the malignant traffic accidents is up to 70%, and the tire pressure insufficiency is the primary reason among all factors causing the tire burst. With the development of the automobile industry, more and more automobile types are carried with a tire pressure monitoring system. The state issues a standard GB27149 in 2017, and the tyre pressure monitoring system is required to be installed on the type M1 vehicle.

The mainstream tire pressure monitoring systems in the market at present are divided into direct tire pressure monitoring systems and indirect tire pressure monitoring systems. The indirect tire pressure monitoring mainly monitors the tire pressure state of the tire in real time through processing signals of a vehicle wheel speed sensor and the like, indirectly and accurately deduces the tire under-pressure position and gives an alarm so as to ensure the driving safety.

In view of the fact that the current indirect tire pressure monitoring system needs to be self-learned based on standard tire pressure to ensure accurate alarm, the tire pressure monitoring system needs to be reset after replacing tires or inflating again. In general, a tire pressure monitoring reset interface is arranged on a central control DVD screen or an instrument liquid crystal screen, and a user can reset the tire pressure monitoring reset interface. With the release of national standards for mandatory installation of tire pressure monitoring, some low-end vehicle models face a replacement scheme option. In the vehicle model without the DVD screen and the instrument liquid crystal screen, the conventional resetting and prompting scheme cannot be adapted, and a new resetting and prompting scheme needs to be developed.

Disclosure of Invention

The invention aims to provide a resetting and prompting method, a system and an automobile for realizing indirect tire pressure monitoring, which can be well applied to low-end vehicle types without DVD screens and instrument liquid crystal screens, and can reset and prompt a tire pressure monitoring system through the conventional low-end vehicle type instrument mileage resetting rod of the automobile.

The technical scheme of the invention is as follows:

the embodiment of the invention provides a resetting and prompting method for realizing indirect tire pressure monitoring, which is applied to vehicle types without a DVD screen and an instrument-free liquid crystal screen, and comprises the following steps:

step S1, the power assembly detects whether the power supply of the whole vehicle is in a power-on state; if yes, go to step S2; if not, returning to execute the step S1;

step S2, the meter assembly judges whether the driver presses the meter mileage reset lever, if the driver presses the meter mileage reset lever, the step S3 is executed; if the driver does not press the meter mileage reset lever, the process returns to step S1;

step S3, the meter assembly judges whether the time of the driver pressing the meter mileage reset lever exceeds a first time length, if the time of the driver pressing the meter mileage reset lever exceeds the first time length, the step S5 is executed; if not, go to step S4;

step S4, the meter assembly does not send a reset request signal to the CAN bus, and then returns to execute S1;

step S5, the instrument assembly judges whether the interval time between the current pressing of the instrument mileage reset rod and the last pressing of the instrument mileage reset rod by the driver exceeds a second time length; if the interval time between the driver pressing the instrument mileage reset lever this time and the driver pressing the instrument mileage reset lever last time exceeds a second time length, executing step S6; if not, the step S4 is executed again;

step S6, the meter assembly sends a reset request signal to the CAN bus, and then step S1 is executed;

step S7, the gateway assembly receives the reset request signal transmitted on the CAN bus and then transmits the reset request signal to the vehicle body stable control assembly, the tire pressure monitoring module in the vehicle body stable control assembly resets the tire pressure monitoring system, the tire pressure monitoring module informs the interior of the reset result to the vehicle body stable control assembly, the vehicle body stable control assembly transmits the reset result to the gateway assembly through the CAN bus, the gateway assembly transmits the reset result to the instrument assembly, and the instrument assembly judges whether the reset result is received in a third time period; if yes, go to step S9; if not, go to step S8;

step S8, the meter assembly sounds for a fourth time length through sound to prompt the driver that the tire pressure monitoring system fails to be reset, and then the step S1 is executed;

step S9, the instrument assembly analyzes the reset result, if the reset result is successful, the step S10 is executed, if the reset result is failure, the step S8 is executed again;

in step S10, the meter assembly sounds a short sound to prompt the driver that the tire pressure monitoring system is successfully reset, and then returns to step S1.

The embodiment of the invention also provides a resetting and prompting system for realizing indirect tire pressure monitoring, which comprises:

the system comprises an instrument assembly, a gateway assembly and a vehicle body stability control assembly, wherein the gateway assembly is connected with the instrument assembly through a CAN bus;

the vehicle body stability control assembly, the gateway assembly and the instrument assembly are respectively connected with the power supply assembly through hard wires;

the instrument assembly receives a tire pressure monitoring reset request signal input by a user through an instrument mileage reset rod and transmits the tire pressure monitoring reset request signal to the gateway assembly; the gateway assembly forwards the received tire pressure monitoring reset request signal to the vehicle body stability control assembly;

the tire pressure monitoring module in the vehicle body stability control assembly resets the tire pressure monitoring system, the tire pressure monitoring module informs the vehicle body stability control assembly of the reset result, the gateway assembly forwards the reset result sent by the vehicle body stability control assembly to the instrument assembly through the CAN bus, and the instrument assembly prompts the tire pressure monitoring reset result according to the reset result.

The embodiment of the invention also provides an automobile which comprises the resetting and prompting system for realizing indirect tire pressure monitoring.

The invention has the technical effects that: compared with the situation that an indirect tire pressure monitoring reset switch is added independently, the traditional indirect tire pressure monitoring reset and prompt method cannot be realized on low-end vehicle models, the reset and prompt on tire pressure monitoring are realized by adopting the traditional low-end instrument mileage reset rod under the condition that other hardware and circuit connection are not added, and the troubles of cost increase caused by an independent switch, a circuit and the like and electromagnetic interference caused by the complexity of the circuit and the like are saved.

Drawings

Fig. 1 is a schematic block diagram of a method for resetting and prompting an indirect tire pressure monitoring.

In the figure: 1-power supply system, 2-automobile body stable control assembly, 3-tire pressure monitoring module, 4-gateway assembly, 5-instrument assembly, 6-instrument mileage release link.

Fig. 2 is a control flow chart of a method for resetting and prompting the indirect tire pressure monitoring.

Detailed Description

The invention is further described with reference to the accompanying drawings in which: