CN212499916U - Constant-speed cruise control system and pure electric sanitation vehicle thereof - Google Patents
Constant-speed cruise control system and pure electric sanitation vehicle thereof Download PDFInfo
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- CN212499916U CN212499916U CN202021460476.0U CN202021460476U CN212499916U CN 212499916 U CN212499916 U CN 212499916U CN 202021460476 U CN202021460476 U CN 202021460476U CN 212499916 U CN212499916 U CN 212499916U
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Abstract
The utility model discloses a constant-speed cruise control system and a pure electric sanitation vehicle thereof, which comprises a vehicle control unit, a motor controller, a battery management system, an instrument unit and a cruise switch; the whole vehicle controller is in data transmission with the motor controller, the battery management system and the instrument unit through a CAN network, the cruise switch comprises a plurality of keys, and each key is connected with the whole vehicle controller through a hard wire; the vehicle control unit comprehensively plans an operation signal, an accelerator pedal signal, a brake signal, a parking signal and an ABS alarm signal, analyzes the signals, controls the vehicle speed according to the operation and control requirements under the condition of meeting the preset constant-speed cruise condition, monitors the states of all system controllers of the vehicle in real time, analyzes the fault, and performs cruise tentative and quit treatment according to the fault level. The utility model discloses the function is comprehensive, saves button and instrument space, has alleviateed driver's working strength, satisfies the travelling comfort requirement, satisfies the constant speed demand to different types of sanitation operation cars, reduces the energy consumption of vehicle.
Description
Technical Field
The utility model relates to a constant speed cruise control system and pure electronic sanitation car thereof belongs to whole car control technical field.
Background
With the great pressure brought by the increasingly remarkable problems of energy crisis, global warming, environmental pollution and the like, the development of electric automobiles is greatly valued by the automobile industry in the world. China gradually adopts electric sanitation operation vehicles to replace traditional fuel oil vehicles. The constant-speed cruise system can improve the comfort of a driver and relieve the fatigue of the driver, but different operation vehicles have different requirements on the constant-speed cruise function, for example, a washing and sweeping vehicle needs to maintain the speed of 5km/h for operation, the control precision is higher, and a box type transport vehicle needs higher cruise speed and the like.
At present, the electric sanitation vehicle on the market has single constant-speed cruising function, can not fully cover all kinds of vehicle types, and once a fault occurs, such as a fault of a transmission hard wire, a fault of a VCU vehicle controller or a fault of communication between a VCU and an electric drive controller MCU, the vehicle can not normally exit from a constant-speed cruising state, and traffic accidents can be caused.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a constant speed cruise control system and pure electronic sanitation car thereof.
In order to achieve the above object, the present invention provides a cruise control system with constant speed, which comprises a vehicle controller, a motor controller, a battery management system, an instrument unit and a cruise switch;
the whole vehicle controller is respectively in data transmission with the motor controller, the battery management system and the instrument unit through a CAN network, the cruise switch comprises a plurality of keys, and each key is connected with the whole vehicle controller through a hard wire;
the vehicle control unit integrally arranges an operation signal, an accelerator pedal signal, a brake signal, a parking signal and an ABS alarm signal, analyzes the signals, controls the vehicle speed according to the operation and control requirements under the condition of meeting the preset constant-speed cruise condition, monitors the state of each system controller of the vehicle in real time, analyzes the fault, and performs cruise suspension and exit processing according to the fault level.
As an improvement, the keys in the cruise switch comprise a reset set speed/cruise acceleration key, a set current speed/cruise deceleration key, a cruise cancel key and a cruise total on/total key.
As a refinement, the control signals comprise an enable signal, a reset signal, a close signal, a pause signal, an acceleration signal and a deceleration signal.
Additionally, the utility model also discloses a pure electric sanitation car, install on the pure electric sanitation car constant speed cruise control system.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the utility model discloses a constant speed cruise control system, the function is comprehensive, and easy operation saves button and instrument space, has alleviateed driver's working strength, satisfies the travelling comfort requirement, satisfies the constant speed demand to different types of sanitation operation cars, reduces the energy consumption of vehicle.
2) The utility model discloses an among the constant speed cruise control system, because signals such as speed of a motor vehicle signal, fault signal pass through the CAN line transmission, with low costs and satisfy the demand of putting in order the different controllers of car to hard wire PWM speed of a motor vehicle signal has been solved and has easily received the interference and easily lost the problem that leads to the work of cruising unusual.
3) The utility model discloses an among the constant speed cruise control system, the trouble information that cruises passes through the instrument and shows, convenient the maintenance.
Drawings
Fig. 1 is a schematic diagram of the principle structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1, a constant-speed cruise control system of a pure electric sanitation vehicle comprises a vehicle control unit VCU 8, a motor controller MCU 1, a battery management system BMS7, an instrument unit ICU 6 and a cruise switch;
the VCU 8 of the vehicle controller is connected with the motor controller MCU 1, the battery management system BMS7 and the instrument unit ICU 6 through a CAN network for communication and data transmission;
the cruise switch is characterized in that keys of the cruise switch are connected with pins of a vehicle control unit VCU 8 in a high-low level triggering mode through hard wires, the vehicle control unit VCU 8 integrally controls signals, an accelerator pedal signal, a brake signal, a parking signal and an ABS (anti-lock brake system) alarm signal, analyzes the signals, controls the speed of the vehicle according to control requirements under the condition that the preset constant-speed cruise condition is met, monitors the state of each system controller of the vehicle in real time, analyzes faults and conducts cruise tentative setting and quit processing according to the fault level.
The cruise switch is provided with a speed/cruise acceleration key 4 for restoring the set speed/cruise, a current speed/cruise deceleration key 3 for setting, a cruise cancel key (cruise PAUSE key PAUSE)5 and a cruise total on/total key 2, and the control signals comprise an enable signal, a reset signal, a close signal, a PAUSE signal, an acceleration signal and a deceleration signal.
The cruise switch is described in table 1 below. The cruise switch has multiple functions through four keys, and the intention of a driver is judged according to the key duration of the driver aiming at the driving requirements of vehicles with different operations, so that the short and accurate control and wide-range modulation of the cruise speed are realized.
TABLE 1 cruise switch description
| Interface name | Type of signal | Number of states | Characteristics of | Remarks for note |
| Reset set speed/cruise acceleration key | Hard wire pulse | Number of | 0-1 | (RES/+) bond |
| Setting current speed/cruise speed reduction key | Hard wire pulse | Number of | 0-1 | (SET/-) linkage |
| Cruise cancel (pause) key | Hard wire pulse | Number of | 0-1 | (CANCEL) bond |
| Cruise general on/general key | Hard wire pulse | Number of | 0-1 | (MANON/OFF) Key |
The utility model also provides a pure electric sanitation car constant speed cruise control method, including following step:
1) after the VCU 8 of the vehicle controller is powered on, reading a motor rotating speed signal transmitted to the VCU 8 of the vehicle controller by the MCU 1 through a CAN bus, and calculating by a function module in the VCU 8 of the vehicle controller to obtain a current vehicle speed signal;
2) the VCU 8 of the vehicle controller collects the state information of the whole vehicle and can execute a cruising function after judging that the cruising condition is met;
3) and (3) turning on the constant-speed cruise function: the cruise function is activated for the first time according to the cruise total on/total key, and at the moment, a cruise indicator lamp in an instrument unit ICU 6 is normally on;
4) accelerating to the driver demand speed (higher than the calibrated value), pressing SET/-key, and then releasing the accelerator and the vehicle will cruise at the current speed;
5) when the vehicle is cruising, the RES/+ key can be pressed to increase the speed at the current speed per hour, the SET/-key is pressed to reduce the speed at the current speed per hour, and the fine adjustment calibration value is pressed for 1km/h each time, and the key is bounced to confirm; when the key duration exceeds 1S, accumulating the speed in the form of an arithmetic progression every 0.5S, and setting the highest limit to 6 times;
6) the driver cancels (suspends) and resumes the constant-speed cruising operation in the cruising of the vehicle;
the specific operation of the constant-speed cruise is recovered:
a) after the constant-speed cruise is suspended, the vehicle is in a normal running state, if the speed of the vehicle is higher than a calibrated value, an RES/+ key is pressed, the vehicle resumes the speed before the suspension and continues cruising at the current speed, and an SET/-key is pressed;
b) if the vehicle is in a constant-speed cruising state, an accelerator pedal is stepped on for acceleration, and the accelerator torque request is larger than the current cruising torque, normal acceleration is carried out according to the opening degree of the accelerator pedal, and after the accelerator pedal is released, if no key is provided, the vehicle can be slowly recovered to the cruising speed;
c) and (3) turning off the constant-speed cruise function operation: the cruise function is switched OFF for the second time in accordance with the cruise master ON/master key MAN ON/OFF, at which time the cruise indicator light in the instrument unit is extinguished.
Example 1
A constant-speed cruise control method for a pure electric sanitation truck comprises the following steps:
1) after the VCU 8 of the vehicle controller is powered on, information from the motor controller MCU 1 and the BMS7 is processed and diagnosed through self-checking, wherein the information comprises information judgment of SOC, SOH, working mode, fault state and the like, whether the gear state of the vehicle is a forward gear or not is diagnosed, whether a brake pedal is effective or not, whether systems such as ABS/EBS and the like normally work or not is diagnosed without fault, the VCU 8 of the vehicle controller judges whether the information of the vehicle meets the condition of starting a cruise function or not, a motor rotating speed signal is sent to the VCU 8 of the vehicle controller MCU 1, and a vehicle speed variable is obtained through the operation of a data chain by an internal function operation module of the VCU 8 of the vehicle controller;
2) when the cruising condition is met, the internal cruising permission state of the VCU 8 of the vehicle control unit is triggered, and the vehicle control unit enters the operation of the constant-speed cruising function: the cruise function is activated for the first time according to the cruise total on/total key, and at the moment, a signal is output to an instrument unit ICU 6, and a cruise indicator lamp is normally on;
3) after constant-speed cruising, accelerating to the speed required by a driver (the default is 5km/h-80 km/h) within the specified speed, pressing a SET current speed/cruising deceleration SET/-key, switching an accelerator pedal torque control mode into a cruising torque control mode by a VCU 8 of the vehicle controller at the moment, and at the moment, releasing an accelerator and cruising the vehicle at the current speed;
4) in the cruising state of the vehicle, operating a cruising switch, pressing a reset speed/cruising acceleration key 4(RES/+), outputting a torque request to a motor controller MCU 1 by a vehicle controller VCU 8 to control the vehicle to accelerate in a step length of 1km/h so as to meet the operation speed of the sanitation vehicle of 5km/h-10 km/h; if a reset speed/cruise acceleration key 4(RES/+) is pressed and kept for 1S, then every 0.5S acceleration is accumulated according to an arithmetic progression, 1.5S is increased by 2km/h, 2S is increased by 4km/h, 2.5S is increased by 7km/h, a highest limit is set, a processed torque request is sent to a motor controller MCU 1 through an integral separation type PID algorithm of a vehicle controller VCU 8, and the motor controller MCU 1 controls the vehicle speed to realize a preset target value;
5) when the vehicle needs to be accelerated temporarily, the vehicle with the accelerator stepped on temporarily stops cruising to realize vehicle acceleration, then the accelerator is loosened, and the vehicle can continue cruising at the speed of the last cruising;
6) when the cruise system has a fault, the VCU 8 of the vehicle control unit judges whether the cruise condition is met or not, and if the cruise condition is not met, the vehicle control unit exits from the cruise and displays the fault on the ICU 6, so that the maintenance of a driver is facilitated;
7) the driver can press a cruise cancel (pause) key 5 to pause the cruise function in the vehicle cruise, press a reset SET speed/cruise acceleration key 4(RES/+) if the speed is SET before the vehicle is reset, and press a SET current speed/cruise deceleration key 3(SET /) if the driver wants to keep the current speed;
8) and (3) turning off the constant-speed cruise function operation: the cruise function is switched off for the second time in accordance with cruise master on/master key 2, at which time the cruise indicator light in instrument unit ICU 6 is extinguished.
The utility model discloses a constant speed cruise control system, the function is comprehensive, and easy operation saves button and instrument space, has alleviateed driver's working strength, satisfies the travelling comfort requirement, satisfies the constant speed demand to different types of sanitation operation cars, reduces the energy consumption of vehicle.
The utility model discloses an among the constant speed cruise control system, because signals such as speed of a motor vehicle signal, fault signal pass through the CAN line transmission, with low costs and satisfy the demand of putting in order the different controllers of car to hard wire PWM speed of a motor vehicle signal has been solved and has easily received the interference and easily lost the problem that leads to the work of cruising unusual.
The utility model discloses an among the constant speed cruise control system, the trouble information that cruises passes through the instrument and shows, convenient the maintenance.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (4)
1. A constant-speed cruise control system is characterized by comprising a vehicle control unit, a motor controller, a battery management system, an instrument unit and a cruise switch;
the whole vehicle controller is respectively in data transmission with the motor controller, the battery management system and the instrument unit through a CAN network, the cruise switch comprises a plurality of keys, and each key is connected with the whole vehicle controller through a hard wire;
the vehicle control unit integrally arranges an operation signal, an accelerator pedal signal, a brake signal, a parking signal and an ABS alarm signal, analyzes the signals, controls the vehicle speed according to the operation and control requirements under the condition of meeting the preset constant-speed cruise condition, monitors the state of each system controller of the vehicle in real time, analyzes the fault, and performs cruise suspension and exit processing according to the fault level.
2. A cruise control system according to claim 1, characterized in that the keys in the cruise switch include a resume set speed/cruise acceleration key, a set current speed/cruise deceleration key, a cruise cancel key, a cruise total on/total key.
3. A cruise control system according to claim 1, characterized in that said control signals comprise an enable signal, a reset signal, a shut-down signal, a pause signal, an acceleration signal and a deceleration signal.
4. A pure electric sanitation vehicle, wherein the pure electric sanitation vehicle is provided with the constant speed cruise control system of any one of claims 1-3.
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| CN202021460476.0U CN212499916U (en) | 2020-07-22 | 2020-07-22 | Constant-speed cruise control system and pure electric sanitation vehicle thereof |
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| CN202021460476.0U CN212499916U (en) | 2020-07-22 | 2020-07-22 | Constant-speed cruise control system and pure electric sanitation vehicle thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703313A (en) * | 2020-07-22 | 2020-09-25 | 徐州徐工汽车制造有限公司 | Constant-speed cruise control system and method for pure electric sanitation vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703313A (en) * | 2020-07-22 | 2020-09-25 | 徐州徐工汽车制造有限公司 | Constant-speed cruise control system and method for pure electric sanitation vehicle |
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Effective date of registration: 20211216 Address after: 221000 No.19 Zhujiang East Road, Xuzhou high tech Industrial Development Zone, Jiangsu Province Patentee after: Xuzhou XCMG New Energy Vehicle Co.,Ltd. Address before: 221000 No.19 Zhujiang East Road, Xuzhou high tech Industrial Development Zone, Jiangsu Province Patentee before: XUZHOU XUGONG AUTOMOBILE MANUFACTURING Co.,Ltd. |
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| TR01 | Transfer of patent right |