CN206766017U - A kind of electronic parking control system - Google Patents

Abstract

The utility model discloses an electronic parking control system, which comprises an electronic parking system, an electronic control unit, an anti-lock braking system, and a gear sensor, wherein the gear sensor is used to collect the current gear information of a car , which is connected with the electronic control unit; the anti-lock braking system is used to collect the wheel speed information of the car, which is connected with the electronic control unit; the electronic control unit is connected with the electronic parking system for issuing control Signal to the electronic parking system. The utility model has the advantages of: through the analysis and processing of the engine speed data, wheel speed data, and gear position data by the ECU, whether the electronic parking system needs to be activated or deactivated at this time can be obtained when the car is parked in the P gear, automatically Start the electronic parking system; when the gear is in the D or R gear and the vehicle speed is higher than the set speed, the electronic parking system will be turned off to reduce the risk of ground slipping caused by forgetting the electronic parking button when parking or starting .

Description

An electronic parking control system

technical field

The utility model relates to an electronic parking control system, in particular to an electronic parking control system for automobiles using ATM.

Background technique

The gear positions of automatic transmission models are: P (parking), D (driving), R (reverse), and N (neutral). When the vehicle is running, the D and R gears are used; when the vehicle is idling, the N gear is generally used, and the brakes are stepped on at the same time to avoid slipping; Even if the handbrake is not pulled, the vehicle will not roll, because automatic transmissions generally have a parking gear locking mechanism. After the electronic handbrake is pulled down, the signal will be transmitted to the ECU, and the ECU will control the car to stop stably on the road through the electronic parking system to prevent the car from slipping.

Compared with some models, due to the use of AMT structure gearboxes, although the gear arrangement of P gear (parking gear), D gear (driving gear), R gear (reverse gear), and N gear (neutral gear) is still used, in fact There is no structural difference between P gear and N gear, and there is no parking gear locking mechanism inside the gearbox. The following situations are prone to occur when parking or parking at idle speed:

1. When parking, if you forget to activate the electronic handbrake while in the P gear, there is a risk of the car slipping and causing an accident;

2. If you habitually put the P gear in the idling state and forget to activate the electronic handbrake and release the footbrake, there is a risk of the car rolling and causing an accident;

3. If you forget to release the electronic handbrake when starting, the vehicle will not be able to move forward, the engine speed will rise, and unnecessary load will be placed on the engine and other power components, which will damage the life of the engine and other power components.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an electronic parking control system, so as to reduce the accidents that the cars using the ATM model will slip due to forgetting the electronic handbrake.

In order to achieve the above purpose, the technical solution adopted by the utility model is an electronic parking control system, including an electronic parking system, an electronic control unit, an anti-lock braking system, and a gear sensor, wherein the gear sensor It is used to collect the current gear information of the car, which is connected to the electronic control unit through the CAN bus;

The anti-lock braking system is used to collect the wheel speed information of the car, which is connected with the electronic control unit;

The electronic control unit is connected with the electronic parking system for sending control signals to the electronic parking system.

Further, the electronic control unit is connected with the engine speed acquisition unit.

Further, the electronic control unit is connected with the electronic parking indicator light.

Preferably, the electronic control unit is communicatively connected with the anti-lock braking system and the electronic parking system through CAN bus.

The utility model has the advantages that: through the analysis and processing of the engine speed data, wheel speed data, and gear position data by the ECU, whether the electronic parking system needs to be activated or deactivated at this time can be obtained when the car is parked and put into the P gear, and automatically Start the electronic parking system; when the gear is engaged in the D or R gear and the vehicle speed is greater than the set speed, the electronic parking system will be turned off, so that the electronic parking system will be more intelligent and reduce the risk of forgetting the electronic parking system when parking or starting. The parking button may cause ground roll and other risks.

Description of drawings

The following is a brief description of the contents expressed in the accompanying drawings of the utility model specification and the marks in the figures:

Fig. 1 is a structural block diagram of the electronic parking control system of the present invention.

detailed description

The specific implementation of the present utility model will be described in further detail below through the description of the best embodiment with reference to the accompanying drawings.

As shown in FIG. 1 , an embodiment of the utility model includes an electronic parking system, an electronic control unit, an anti-lock braking system, and a gear sensor. Among them, the electronic parking system is used to park the car according to the control command to prevent the car from slipping; the gear sensor is used to detect the gear information of the car at this time, that is, the gear is in P gear (parking gear), D gear ( Drive gear), R gear (reverse gear), N gear (neutral gear) which state. The anti-lock braking system is used to measure the wheel speed information of the car, and the built-in wheel speed sensor in the anti-lock braking system is used here. The engine speed acquisition unit is used to collect the engine speed information. The anti-lock braking system, the gear sensor, and the engine speed acquisition unit are respectively connected to the input terminals of the electronic control unit, and the output terminals of the electronic control unit are respectively connected to the electronic parking system and the electronic parking indicator light. Among them, the electronic control unit is connected with the anti-lock braking system, the electronic parking system, and the gear sensor through the CAN bus.

The anti-lock braking system, gear position sensor, and engine speed acquisition unit transmit the collected wheel speed information, gear information, and engine speed information to the electronic control unit, and the electronic control unit judges whether it is necessary to start the electronic parking system after processing the data. car system, when the parking conditions are met, the electronic parking system will be activated and the electronic parking indicator light will be activated. The indicator light is used to prompt and display the status of the electronic parking system at this time. Here, the anti-lock braking system ABS is used to obtain the wheel speed information. The ABS is installed on the car itself, which reduces the cost of realizing the technical solution. The electronic control unit ECU is realized by the vehicle controller or the engine electronic control unit.

The control principle of the utility model is: the data of the gear sensor and the wheel speed sensor are transmitted to the electronic control unit, when the gear sensor detects that the car gear is put into the P gear, and at this time the wheel speed in the anti-lock braking system When the wheel speed in the sensor is 0, the parking condition is satisfied, the electronic control unit sends control information to the electronic parking system, the electronic parking system is turned on, and the parking is turned on; the data collected by the engine speed acquisition unit is sent to the electronic control unit, when the car When the D gear is engaged and the engine wheel speed data is greater than the set value, the electronic control unit sends a control signal to release the parking of the electronic parking system and turn off the electronic parking system. Or when the car is put into the R gear and the engine wheel speed is greater than the set value, the electronic control unit sends a control signal to release the parking of the electronic parking system, and close the electronic parking system, and the car can drive now. Here the engine wheel speed setting value can be set to 2000r. When it is greater than 2000r and the car is put into D gear or R gear, the electronic parking system is turned off at this time, and the car can be started.

The utility model adopts the wheel speed of the automobile engine, the wheel speed of the automobile, and gear information as the conditions for judging whether the electronic parking system works, and analyzes the three conditions through the electronic control unit, and controls the electronic parking system when the corresponding conditions are met. Work in the corresponding state, realize the automatic control of the electronic parking system, reduce the defects of slipping the car caused by forgetting to turn on the electronic parking system manually, and forgetting to turn off the electronic parking system to start the car, which will cause damage to the car's brake components, which has great advantages High practical promotion significance.

Apparently, the specific implementation of the utility model is not limited by the above methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the present invention, they all fall within the protection scope of the present invention.

Claims (4)

1. a kind of electronic parking control system, including electronic parking system, it is characterised in that：Also include electronic control unit, prevent Antilock brake system, shift sensor, wherein, described shift sensor is used to gather automobile current shift information, passes through vapour Car CAN is connected with electronic control unit；

Described anti-lock braking system is used for the wheel speed information for gathering automobile, and it is connected with electronic control unit；

Described electronic control unit is connected with electronic parking system, described electronic control unit be used for receive shift signal, GES, and control signal is sent to electronic parking system.

A kind of 2. electronic parking control system as claimed in claim 1, it is characterised in that：Described electronic control unit and hair Motivation rotating speed collecting unit connects.

A kind of 3. electronic parking control system as claimed in claim 1, it is characterised in that：Described electronic control unit and electricity Sub- parking indicator lamp connection.

A kind of 4. electronic parking control system as claimed in claim 1 or 2, it is characterised in that：Described electronic control unit Communicated to connect with anti-lock braking system, electronic parking system by CAN.