CN213735164U - Novel unmanned chassis drive-by-wire system - Google Patents
Novel unmanned chassis drive-by-wire system Download PDFInfo
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- CN213735164U CN213735164U CN202022577900.6U CN202022577900U CN213735164U CN 213735164 U CN213735164 U CN 213735164U CN 202022577900 U CN202022577900 U CN 202022577900U CN 213735164 U CN213735164 U CN 213735164U
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Abstract
The utility model relates to a novel unmanned chassis drive-by-wire system, including the VCU controller and with the VCU controller passes through CAN bus connection's steer-by-wire system, drive-by-wire braking system, drive-by-wire parking system and drive-by-wire system, adopts the drive-by-wire technique CAN save a lot of mechanical parts for the car, reduces automobile body weight, and energy saving saves controls, and arranging on chassis is more nimble.
Description
Technical Field
The utility model relates to an unmanned technique device field specifically is a novel unmanned chassis drive-by-wire system.
Background
With the rapid development of vehicle-mounted networks and microprocessors, various vehicle dynamics control systems develop towards low cost, multiple functions, intellectualization, networking and integration, and the integrated control of a drive-by-wire chassis is a future development trend.
The chassis realizes the unmanned function, and most importantly, the actuating mechanism of the chassis is upgraded to bus control from traditional mechanical or hydraulic drive, namely the wire control technology.
The wire control technology adopts electric signal connection among the control units to control and drive the actuating mechanism, replaces the traditional mechanical or hydraulic drive, can save a plurality of mechanical parts for the automobile, reduces the weight of the automobile body and saves the energy consumption.
Particularly in the field of unmanned driving, the automobile wire control technology can reduce hydraulic pressure, mechanical control devices, lever, bearings and other metal connecting parts, greatly reduce the complexity of mechanical system components, has flexible circuit arrangement, improves the reliability and safety of a control system, and simultaneously, the wire control system can greatly reduce the occupied system space, further get rid of the limitation of a mechanical structure, and realize complex control strategies and more ideal control; in the aspect of integrated control, the control performance of the wire control system is obviously superior to that of the traditional control system.
Therefore, it is necessary to develop a chassis drive-by-wire system for the field of unmanned driving.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel unmanned chassis drive-by-wire system is provided to solve the defect that exists among the prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a novel unmanned chassis drive-by-wire system comprises a VCU controller, a drive-by-wire steering system, a drive-by-wire brake system, a drive-by-wire parking system and a drive-by-wire drive system, wherein the drive-by-wire steering system, the drive-by-wire brake system, the drive-by-wire parking system and the drive-by-wire drive system are connected with the VCU controller through a CAN bus;
the steer-by-wire system comprises a steering power-assisted motor connected with a steering motor controller, and the steering power-assisted motor is connected with a steering gear through a universal joint;
the brake-by-wire system consists of a brake motor, an electric cylinder, a brake master cylinder, a front brake cylinder, a traveling and parking integrated brake cylinder and a brake motor driver; the brake master pump is connected with the traveling and parking integrated brake slave cylinder through a rear hydraulic oil pipe, and the brake master pump is connected with the front brake slave cylinder through a front hydraulic oil pipe; the brake motor controls the electric cylinder to move to adjust the brake master cylinder to adjust the pressure;
the line control parking system consists of a parking motor, a parking pull wire, a traveling and parking integrated brake caliper and a parking motor controller; the parking motor controller is connected with the VCU controller through a CAN bus, and the parking motor drives the parking integrated brake caliper to act through a parking pull wire;
the drive-by-wire system consists of a rear axle motor, a rear axle and a rear axle motor controller, wherein the rear axle motor controller is connected with the VCU controller through a CAN bus;
furthermore, the front hydraulic oil pipe is communicated with the brake master cylinder through a hydraulic hard pipe;
furthermore, the front brake cylinder is connected with a front brake disc for braking; the traveling and parking integrated brake cylinder is connected with the rear brake disc for braking;
the utility model has the advantages that: the wire control technology can save a plurality of mechanical parts for the automobile, reduce the weight of the automobile body and save energy consumption; the wire control system can greatly reduce the occupied system space, further get rid of the limitation of a mechanical structure, and realize a complex control strategy and more ideal control; the wire control technology adopts wires to transmit control signals, and compared with the traditional wire control system adopting a mechanical or hydraulic driving mode, the wire control system is more flexible in arrangement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the reference numerals are explained below:
1. the hydraulic brake system comprises a brake master cylinder, a rear hydraulic oil pipe, a 3, an electric cylinder, a 4, a brake motor, a 5, a rear axle motor controller, a 6, a rear brake disc, a 7, a parking pull wire, a 8, a hydraulic hard pipe, a 9, a steering motor controller, a 10, a parking motor, a 11, a front brake sub-pump, a 12, a front brake disc, a 13, a traveling and parking integrated brake sub-pump, a 14, a rear axle, a 15, a rear axle motor, a 16, a VCU controller, a 17, a brake motor driver, a 18, a front hydraulic oil pipe, a 19, a steering booster motor, a 20, a universal joint, a 21 and a steering gear;
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, a novel pilotless chassis line control system comprises a VCU controller 16, a line control steering system, a line control brake system, a line control parking system and a line control driving system, which are connected with the VCU controller through a CAN bus, wherein the line control steering system, the line control brake system, the line control parking system and the line control driving system are connected with the VCU controller through a CAN bus;
the steer-by-wire system comprises a steering power-assisted motor 19 connected with a steering motor controller 9, wherein the steering power-assisted motor 19 is connected with a steering gear 21 through a universal joint 20;
the brake-by-wire system consists of a brake motor 4, an electric cylinder 3, a brake master cylinder 1, a front brake cylinder 11, a traveling and parking integrated brake cylinder 13 and a brake motor driver 17; the brake master cylinder 1 is connected with a traveling and parking integrated brake cylinder 13 through a rear hydraulic oil pipe 2, and the brake master cylinder 1 is connected with a front brake cylinder 11 through a front hydraulic oil pipe 18; the brake motor 4 controls the electric cylinder 3 to move to adjust the brake master cylinder 1 to adjust the pressure;
the line control parking system consists of a parking motor 10, a parking pull wire 7, a traveling and parking integrated brake caliper and a parking motor controller; the parking motor controller is connected with the VCU controller 16 through a CAN bus, and the parking motor 10 drives the traveling and parking integrated brake caliper to act through a parking pull wire 7;
the drive-by-wire system consists of a rear axle motor 15, a rear axle 14 and a rear axle motor controller 5, wherein the rear axle motor controller is connected with the VCU controller through a CAN bus;
in specific implementation, the VCU controller operates the automobile through electric components such as controllers, electric wires, signal wires, motors and the like of corresponding components.
The steer-by-wire system cancels the mechanical connection between a steering wheel and steering wheels, adopts electric signals to control the steering of the wheels, can freely design the angle transmission characteristic and the force transmission characteristic of the steering system of the automobile, and realizes the functions which are not possessed by a plurality of traditional steering systems.
The brake-by-wire system adopts electric wires to replace part or all of brake pipelines, and controls the electric control element through the controller to control the magnitude of braking force.
The drive-by-wire system sends the instruction to chassis VCU according to host computer, and chassis VCU improves automobile dynamic nature, economic nature and operating stability through CAN bus accurate control motor output power and wheel drive power.
More specifically, the front hydraulic oil pipe 18 is communicated with the master cylinder 1 through a hydraulic hard pipe 8;
more specifically, the front brake cylinder 11 is connected with a front brake disc 12 for braking; the traveling and parking integrated brake cylinder 13 is connected with the rear brake disc 6 for braking;
the utility model has the advantages of as follows:
1. the wire control technology can save a plurality of mechanical parts for the automobile, reduce the weight of the automobile body and save energy consumption;
2. the wire control system can greatly reduce the occupied system space, further get rid of the limitation of a mechanical structure, and realize a complex control strategy and more ideal control;
3. the wire control technology adopts wires to transmit control signals, and compared with the traditional wire control system adopting a mechanical or hydraulic driving mode, the wire control system is more flexible in arrangement.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel unmanned chassis drive-by-wire system which characterized in that: the parking system comprises a VCU controller, a steer-by-wire system, a brake-by-wire system, a parking-by-wire system and a drive-by-wire system, wherein the steer-by-wire system, the brake-by-wire system, the parking-by-wire system and the drive-by-wire system are connected with the VCU controller through a CAN bus;
the steer-by-wire system comprises a steering power-assisted motor connected with a steering motor controller, and the steering power-assisted motor is connected with a steering gear through a universal joint;
the brake-by-wire system consists of a brake motor, an electric cylinder, a brake master cylinder, a front brake cylinder, a traveling and parking integrated brake cylinder and a brake motor driver; the brake master pump is connected with the traveling and parking integrated brake slave cylinder through a rear hydraulic oil pipe, and the brake master pump is connected with the front brake slave cylinder through a front hydraulic oil pipe; the brake motor controls the electric cylinder to move to adjust the brake master cylinder to adjust the pressure;
the line control parking system consists of a parking motor, a parking pull wire, a traveling and parking integrated brake caliper and a parking motor controller; the parking motor controller is connected with the VCU controller through a CAN bus, and the parking motor drives the parking integrated brake caliper to act through a parking pull wire;
the drive-by-wire system comprises a rear axle motor, a rear axle and a rear axle motor controller, wherein the rear axle motor controller is connected with the VCU controller through a CAN bus.
2. The novel unmanned chassis drive-by-wire system of claim 1, wherein: the front hydraulic oil pipe is communicated with the brake master cylinder through a hydraulic hard pipe.
3. The novel unmanned chassis drive-by-wire system of claim 2, wherein: the front brake cylinder is connected with the front brake disc for braking; the walking and parking integrated brake cylinder is connected with the rear brake disc for braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022577900.6U CN213735164U (en) | 2020-11-05 | 2020-11-05 | Novel unmanned chassis drive-by-wire system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022577900.6U CN213735164U (en) | 2020-11-05 | 2020-11-05 | Novel unmanned chassis drive-by-wire system |
Publications (1)
| Publication Number | Publication Date |
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| CN213735164U true CN213735164U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022577900.6U Active CN213735164U (en) | 2020-11-05 | 2020-11-05 | Novel unmanned chassis drive-by-wire system |
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| CN (1) | CN213735164U (en) |
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- 2020-11-05 CN CN202022577900.6U patent/CN213735164U/en active Active
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