CN112590745A - Integrated electronic parking system for multi-axle vehicle and parking method thereof - Google Patents
Integrated electronic parking system for multi-axle vehicle and parking method thereof Download PDFInfo
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- CN112590745A CN112590745A CN202011536972.4A CN202011536972A CN112590745A CN 112590745 A CN112590745 A CN 112590745A CN 202011536972 A CN202011536972 A CN 202011536972A CN 112590745 A CN112590745 A CN 112590745A
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- parking
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- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
Abstract
The invention discloses an integrated electronic parking system for a multi-axle vehicle, which comprises a parking controller and an emergency release controller, wherein the parking controller is connected with a whole vehicle CAN bus, an EPB switch and parking driving motors of all axles, and the emergency release controller is connected with an emergency release switch and the parking driving motors of all axles; the parking controller comprises a plurality of power supply control modules, each power supply control module controls two pre-drive modules, each pre-drive module controls two parking driving motors on different shafts to realize cross control on the parking driving motors of each shaft, the emergency release controller comprises a plurality of relay modules, and each relay module controls the parking driving motors on two different shafts; a plurality of control modules are integrated in the parking controller, cross control is respectively and independently carried out on a plurality of parking brake motors of multiple shafts, all shafts of the vehicle are enabled to participate in parking at the same time, multi-shaft coordination action is achieved, emergency parking release is achieved through an emergency release controller, and normal running of the vehicle is guaranteed.
Description
Technical Field
The invention belongs to the technical field of automobile electric control, and particularly relates to an integrated electronic parking system for a multi-axle vehicle and a parking method thereof.
Background
The intelligent and electric parking system makes the electronic parking more and more widely applied to automobiles. For the above two-axle vehicles, the electronic parking is mostly carried out by adopting a pneumatic electronic parking scheme, and devices such as an air source, an air storage cylinder, a pipeline and the like need to be arranged, so that the weight reduction and the arrangement of the vehicle are not facilitated.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention aims to solve the problems that in the prior art, a pneumatic electronic parking scheme is mostly adopted for electronic parking of more than two-axis vehicles, and the weight reduction and arrangement of the vehicles are not facilitated.
In order to achieve the above object, according to an aspect of the present invention, there is provided an integrated electronic parking system for a multi-axle vehicle, including a parking controller connected to a vehicle CAN bus, an EPB switch, and parking drive motors of respective axles, and an emergency release controller connected to an emergency release switch and the parking drive motors of respective axles;
the parking controller comprises a plurality of power supply control modules, each power supply control module controls two pre-drive modules, each pre-drive module controls two parking driving motors on different shafts, and cross control over the parking driving motors on the shafts is achieved.
The emergency release controller comprises a plurality of relay modules, each relay module controls the parking driving motors on two different shafts, and cross control over the parking motors on the shafts is achieved.
Furthermore, there are 4 power control modules, which are respectively a power control module P1, a power control module P2, a power control module P3 and a power control module P4; the pre-drive module M1 and the pre-drive module M2 controlled by the power supply control module P1 respectively control an I-axis parking motor G1 and an II-axis parking motor G3; the pre-drive module M5 and the pre-drive module M6 controlled by the power supply control module P2 respectively control a shaft III parking motor G5 and a shaft IV parking motor G7; the pre-drive module M3 and the pre-drive module M4 controlled by the power supply control module P3 respectively control an I-axis parking motor G2 and an II-axis parking motor G4; the pre-drive module M7 and the pre-drive module M8 controlled by the power supply control module P4 respectively control the III-axis parking motor G6 and the IV-axis parking motor G8.
Furthermore, the number of the relay modules is four, namely a relay module K1, a relay module K2, a relay module K3 and a relay module K4; the relay module K1 controls an I-axis parking motor G2 and an II-axis parking motor G4; the relay module K2 controls a shaft III parking motor G6 and a shaft IV parking motor G8 respectively; the relay module K3 controls an I-axis parking motor G1 and an II-axis parking motor G3 respectively; the relay module K4 controls the III-axis and IV-axis parking motors G5 and G7, respectively.
Furthermore, when the parking controller 1 is partially or completely out of service, the emergency release button R is pressed, and the relay module K can control the vehicle power supply to directly supply power to the motor, so that emergency parking release is realized; after the emergency release, the EPB switch is pulled up or released, and the normal pull-up and release functions of the remaining normal modules in the parking controller 1 are not affected.
Furthermore, the relay module adopts a relay with the model number TD228C-1001 PY.
Further, the power control module adopts a power controller with the model number of 16 TSSOP-A6861.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1. according to the electronic parking system, the plurality of control modules are integrated in the parking controller, and the plurality of parking brake motors of multiple shafts are respectively and independently controlled in a cross mode, so that all shafts of a vehicle can participate in parking at the same time, and the multi-shaft coordination action is realized. Meanwhile, the problem that failure probability is increased due to excessive motors is solved, and difficulty in vehicle running caused by failure of individual electronic components is avoided.
2. According to the electronic parking system, the emergency release controller is additionally arranged outside the parking controller, when the parking controller is partially or completely out of work, the one-key release button can be operated, the emergency release of parking is realized through the emergency release controller, and the normal running of a vehicle is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a multi-axis electronic parking system according to a preferred embodiment of the present invention (in the diagram, R is an emergency release button);
FIG. 2 is a control flow diagram of the parking controller according to the preferred embodiment of the present invention;
FIG. 3 is a block flow diagram of an emergency release controller in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a multi-axis electronic parking controller in accordance with a preferred embodiment of the present invention;
fig. 5 is a circuit diagram of an emergency release control circuit according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, an integrated electronic parking system for a multi-axle vehicle includes a parking controller 1 and an emergency release controller 2, wherein the parking controller 1 is connected to a vehicle CAN bus, an EPB switch and parking driving motors of respective axles, and the emergency release controller 2 is connected to an emergency release switch and the parking driving motors of respective axles;
the number of the power supply control modules is 4, and the power supply control modules are respectively a power supply control module P1, a power supply control module P2, a power supply control module P3 and a power supply control module P4; specifically, the power controller can adopt a power controller with an idealistic semiconductor model number of 16TSSOP-a6861, and the power control module P1 controls a pre-drive module M1 and a pre-drive module M2 to respectively control an I-axis parking motor G1 and an II-axis parking motor G3; the pre-drive module M5 and the pre-drive module M6 controlled by the power supply control module P2 respectively control a shaft III parking motor G5 and a shaft IV parking motor G7; the pre-drive module M3 and the pre-drive module M4 controlled by the power supply control module P3 respectively control an I-axis parking motor G2 and an II-axis parking motor G4; the pre-drive module M7 and the pre-drive module M8 controlled by the power supply control module P4 respectively control a shaft III parking motor G6 and a shaft IV parking motor G8; in practice, the MCU main control chip can be connected with the MOS motor driving circuit in a bidirectional way through the SPI interface and controls the parking motor of each shaft through the bridge circuit.
According to the scheme, the failure of any power supply control module can be realized, the simultaneous failure of two motors of one shaft can not be caused, and the parking braking force of the whole shaft is prevented from losing; when any power supply module P fails, the normal work of other power supply modules is not influenced; the failure of any pre-drive module M does not affect the normal work of other drive modules, for example, the pre-drive module M2 and the pre-drive module M3 can both control the parking motor on the I shaft, and the failure of any one of the pre-drive module M2 and the pre-drive module M3 does not bring the integral failure of the I shaft parking function, thereby realizing the cross control with higher safety; the parking controller 1 can perform modularized matching according to the actual number of axles of the vehicle, and if the vehicle is a two-axle vehicle, the power supply modules P3 and P4 are correspondingly closed; if a three-axle vehicle is used, the P4 module may be turned off.
The number of the relay modules is four, and the four relay modules are respectively a relay module K1, a relay module K2, a relay module K3 and a relay module K4; specifically, a relay with the model number TD228C-1001PY can be adopted, and the relay module K1 controls the shaft I parking motor G2 and the shaft II parking motor G4; the relay module K2 controls a shaft III parking motor G6 and a shaft IV parking motor G8 respectively; the relay module K3 controls an I-axis parking motor G1 and an II-axis parking motor G3 respectively; the relay module K4 controls the III-axis and IV-axis parking motors G5 and G7, respectively.
When the parking controller 1 is partially or completely out of service, the emergency release button R is pressed, and the relay module K can control the vehicle power supply to directly supply power to the motor, so that emergency parking release is realized; after the emergency release, the EPB switch is pulled up or released, and the normal pull-up and release functions of the remaining normal modules in the parking controller 1 are not affected.
Referring to fig. 2, the parking method of the integrated electronic parking system for a multi-axle vehicle includes: when the vehicle stops, when a driver pulls an EPB switch to send a parking/releasing request, after the parking controller 1 receives a parking signal, other vehicle state signals on the bus are collected to carry out judgment and calculation, and then instructions are sent to 4 power supply modules (P1\ P2\ P3\ P4); the power supply module controls the action current and the action time of the corresponding pre-driver module according to the received information, and actuates the parking motor to act to realize parking;
referring to fig. 3 and 4, when the parking controller 1 fails to control the parking motor and the parking brake cannot be released, so that the vehicle cannot run, a driver may press the emergency release switch, and the 4 relay modules are simultaneously energized to directly input a reverse voltage to the parking motor, so that the motor is reversely rotated and the parking brake is released; after the power-on time reaches the delay time, the relay module is powered off, the vehicle keeps the parking-released state, and the vehicle can run to a maintenance station for maintenance; if the parking controller 1 only has partial power supply modules or pre-drive modules failed, at this time, only at least 1 group of power supply modules and corresponding pre-drive modules in the parking controller 1 need to work normally, the vehicle still has a certain parking braking capability, and partial parking braking function can be realized by buckling the EPB switch and controlling by the parking controller 1, so that the safety of the vehicle and personnel is ensured.
The invention fills the technical gap that two-axis and multi-axis vehicles adopt an integrated motor type EPB (electronic parking brake system).
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as a quantity of "first," "second," etc. may include one or more of the feature either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a multiaxis is integrated form electron parking system for vehicle which characterized in that: the emergency release control system comprises a parking controller (1) and an emergency release controller (2), wherein the parking controller (1) is connected with a whole vehicle CAN bus, an EPB switch and parking driving motors of all axles, and the emergency release controller (2) is connected with an emergency release switch and the parking driving motors of all axles;
the parking controller (1) comprises a plurality of power supply control modules, each power supply control module controls two pre-driving modules, each pre-driving module controls two parking driving motors on different shafts, cross control over the parking motors of all shafts is achieved, and cross control over the parking motors of all shafts is achieved;
the emergency release controller (2) comprises a plurality of relay modules, each relay module controls the parking driving motors on two different shafts, and cross control over the parking motors on the shafts is achieved.
2. The integrated electronic parking system for a multi-axle vehicle according to claim 1, wherein: the number of the power supply control modules is 4, and the power supply control modules are respectively a power supply control module P1, a power supply control module P2, a power supply control module P3 and a power supply control module P4; the pre-drive module M1 and the pre-drive module M2 controlled by the power supply control module P1 respectively control an I-axis parking motor G1 and an II-axis parking motor G3; the pre-drive module M5 and the pre-drive module M6 controlled by the power supply control module P2 respectively control a shaft III parking motor G5 and a shaft IV parking motor G7; the pre-drive module M3 and the pre-drive module M4 controlled by the power supply control module P3 respectively control an I-axis parking motor G2 and an II-axis parking motor G4; the pre-drive module M7 and the pre-drive module M8 controlled by the power supply control module P4 respectively control the III-axis parking motor G6 and the IV-axis parking motor G8.
3. The integrated electronic parking system for a multi-axle vehicle according to claim 1, wherein: the number of the relay modules is four, and the four relay modules are respectively a relay module K1, a relay module K2, a relay module K3 and a relay module K4; the relay module K1 controls an I-axis parking motor G2 and an II-axis parking motor G4; the relay module K2 controls a shaft III parking motor G6 and a shaft IV parking motor G8 respectively; the relay module K3 controls an I-axis parking motor G1 and an II-axis parking motor G3 respectively; the relay module K4 controls the III-axis and IV-axis parking motors G5 and G7, respectively.
4. The integrated electronic parking system for a multi-axle vehicle according to claim 1, wherein: the relay module adopts a relay with the model number TD228C-1001 PY.
5. The integrated electronic parking system for a multi-axle vehicle according to claim 1, wherein: the power control module adopts a power controller with the model number of 16 TSSOP-A6861.
6. The integrated electronic parking system for a multi-axle vehicle according to claim 1, wherein: when the parking controller (1) is partially or completely out of service, the emergency release button R is pressed, the relay module K controls the vehicle power supply to directly supply power to the motor, and emergency parking release is realized; after the emergency release, the EPB switch is pulled up or released, and the normal pulling up and release of the remaining normal modules in the parking controller 1 are not affected.
7. A parking method of an integrated electronic parking system for a multi-axle vehicle is characterized in that: when the vehicle stops, when a driver pulls the EPB switch to send a parking/releasing request, the parking controller (1) collects other vehicle state signals on the bus after receiving a parking signal, judges and calculates the signals and then sends instructions to the plurality of power supply control modules; the power supply module controls the action current and the action time of the corresponding pre-driver module according to the received information, and actuates the parking motor to act to realize parking;
when the parking controller (1) fails to control the parking motor and the parking brake cannot be released, so that the vehicle cannot run, a driver presses an emergency release switch, the relay modules are simultaneously electrified, and reverse voltage is directly input to the parking motor, so that the motor is reversely rotated, and the parking brake is released; after the electrifying time reaches the delay time, the relay module is powered off, the vehicle keeps in a state of releasing the parking, and the vehicle can run to a maintenance station for maintenance at the moment.
8. The parking method of an integrated electronic parking system for multi-axle vehicles according to claim 5, characterized in that: if the parking controller (1) only has partial power supply modules or pre-drive modules to fail, at the moment, only at least 1 group of power supply modules and corresponding pre-drive modules in the parking controller (1) can normally work, the vehicle still has certain parking braking capability, and partial parking braking function can be realized by buckling the EPB switch and controlling by the parking controller (1), so that the safety of the vehicle and personnel is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011536972.4A CN112590745A (en) | 2020-12-23 | 2020-12-23 | Integrated electronic parking system for multi-axle vehicle and parking method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011536972.4A CN112590745A (en) | 2020-12-23 | 2020-12-23 | Integrated electronic parking system for multi-axle vehicle and parking method thereof |
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| CN112590745A true CN112590745A (en) | 2021-04-02 |
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| CN202011536972.4A Pending CN112590745A (en) | 2020-12-23 | 2020-12-23 | Integrated electronic parking system for multi-axle vehicle and parking method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042761A (en) * | 2022-07-08 | 2022-09-13 | 东风越野车有限公司 | Failure backup system for automobile braking |
| CN115158278A (en) * | 2022-09-07 | 2022-10-11 | 万向钱潮股份公司 | Redundancy control method and redundancy control system for multi-brake system |
-
2020
- 2020-12-23 CN CN202011536972.4A patent/CN112590745A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042761A (en) * | 2022-07-08 | 2022-09-13 | 东风越野车有限公司 | Failure backup system for automobile braking |
| CN115158278A (en) * | 2022-09-07 | 2022-10-11 | 万向钱潮股份公司 | Redundancy control method and redundancy control system for multi-brake system |
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