CN101823486A - Automatic driving system - Google Patents
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Abstract
The invention provides an automatic driving system which not only can realize the automatic driving of a single vehicle, but also can control the running of other vehicles. The automatic driving system comprises a main vehicle system arranged on a main vehicle, and a following vehicle system arranged on a following vehicle, wherein induction units, control units, execution units and information transmission units are arranged in both the main vehicle system and the following vehicle system, the induction unit comprises a vehicle speed sensor, a corner sensor and an external environment sensor, and the execution unit comprises an auxiliary steering mechanism, a throttle control device, a gear control device and an auxiliary brake body. The main vehicle control unit obtains the road information by the external environment sensor and realizes the automatic driving by controlling the execution unit, and the following vehicle utilizes the information of the main vehicle to control the running state thereof, so both of the main vehicle and the following vehicle do not need drivers. The automatic driving system is particularly suitable for the long-distance running of motorcades for combined self-driving tour and the like, relieves the fatigue strength of the driver of the following vehicle, and improves the safety and the comfort of running.
Description
Technical field
The invention belongs to field of automobile, specially refer to the personal vehicle system of automobile.
Background technology
For adapting to rapid economy development, expressway construction is more and more faster, the widely-used convenience that improves life of express highway, but the express highway of long distance travels, can make the driver feel tired, dull, make the safety misadventure that causes because of fatigue driving increase gradually.If therefore can realize the automatic steering of vehicle, many vehicles in the fleets such as the self-driving travel of especially forming a team are realized automatic steering simultaneously, will significantly improve the traffic safety of express highway and the traveling comfort of driving.
Existing automatic vehicle control system still needs to carry out manual intervention, and can only be applied on the single unit vehicle, and the actual effect that produces is limited, and particularly a plurality of vehicles when forming a team self-driving travel do not alleviate the driver fatigue degree.The disclosed a kind of self-adaption cruise system of patent CN200680046623.6 for example, this system comprises the object-detection device, this object-detection device can be surveyed a plurality of objects simultaneously, for each object that is detected produces independently control command, thereby influence the engine control unit and the braking force control system of main vehicle, thereby control the speed of main vehicle.Relatively be a plurality of control commands that object produced that are detected simultaneously then, and in these control commands, select the most restricted control command.Then, at least one control signal is sent in the engine control unit of main vehicle and in the braking force control system at least one, thereby control the speed of main vehicle according to selected control command according to selected control command.This system can make chaufeur not take the operation of engine installation into account, but still wants the travel direction of control vehicle.
Patent CN200420009835.5 discloses a kind of expressway intelligent vehicle, adopt car-mounted computer to handle the data of range only radar, automatic distance control device and pick up camera, and provide correction instruction to air throttle of car, braking force control system and steering controller in view of the above; Adopt the scene of the clearance line that is provided with on the vehicle front highway under the pick up camera memory, and it is reached the route of car-mounted computer to determine to travel; Control turns to when adopting steering controller to car; Adopt automatic distance control device to measure the distance of this car and front truck and calculate the two distance, and this information is passed to car-mounted computer operate the safety distance that air throttle of car, braking force control system and front truck keep a setting automatically by it, the utility model can travel on express highway automatically.Though this technology can realize the automatic steering function of single unit vehicle, can not control other vehicle.
Summary of the invention
The objective of the invention is to propose a kind of automatic steering that not only can realize single unit vehicle, can also control the personal vehicle system of other vehicle ',, improve travel safety and traveling comfort to alleviate the driver fatigue degree.
Personal vehicle system of the present invention comprise the main truck system that is installed on the main car and be installed in from the car from truck system, key is described main truck system and includes sensing unit, control unit, performance element and information transmission unit in truck system, described sensing unit comprises car speed sensor, rotary angle transmitter and external environment condition sensor, and described performance element comprises auxiliary steering mechanism, air throttle control device, shift-position control apparatus and auxiliary brake mechanism;
In main truck system: control unit receives collected information of road surface and car speed sensor and the collected motoring condition information of rotary angle transmitter of external environment condition sensor, generate control signal and transfer in auxiliary steering mechanism, air throttle control device, shift-position control apparatus and the auxiliary brake mechanism at least one according to above-mentioned information, to control the motoring condition of main car;
The control unit of main truck system transfers to the motoring condition information and the information of road surface of main car from truck system by information transmission unit in real time;
From truck system: control unit is known spacing with main car by the external environment condition sensor, and in conjunction with the motoring condition information and the information of road surface of the main truck system that receives, generate control signal and transfer in auxiliary steering mechanism, air throttle control device, shift-position control apparatus and the auxiliary brake mechanism at least one, with the motoring condition of control from car.
Main car control unit in the above-mentioned personal vehicle system utilizes the external environment condition sensor to know information of road surface, and realize automatic steering by control execution unit, and utilize the information of main car to control its motoring condition from car, therefore main car and all need not chaufeur from car and get involved; When the situation more complicated of road surface, main car can be controlled by chaufeur, need not chaufeur from car and gets involved and control.This personal vehicle system is particularly suitable for making up the long-distance running of fleets such as self-driving travel, alleviates from car driver fatigue degree, improves travel safety and traveling comfort.
Safer for making from controlling of car, in personal vehicle system of the present invention: the control unit of main truck system also will transfer to from truck system by information transmission unit according to the control signal that information of road surface and motoring condition information are generated in real time, know spacing with main car from the control unit of truck system by the external environment condition sensor, and in conjunction with the motoring condition information of the main truck system that receives, the control signal of information of road surface and main car, generation is from the control signal of car and transfer to auxiliary steering mechanism, air throttle control device, in shift-position control apparatus and the auxiliary brake mechanism at least one is with the motoring condition of control from car.From the control signal of car, can generate the control signal from car more rigorous, science, thereby make from controlling of car safer according to motoring condition information, information of road surface and the main car of spacing and main truck system.
The external environment condition sensor of described main truck system comprises image sensing and range only radar at least, with know information of road surface and with the spacing of front truck; At least comprise range only radar from the external environment condition sensor of truck system, to know the spacing with front truck.
Described main truck system and all comprise image sensing and range only radar at least from the external environment condition sensor of truck system.Main like this car is identical with the configuration from car, and each car all not only can be worked as main car, can also work as from car, in the process of travelling as required flexible transformation master car, from the position of car, improve convenience.
Described information transmission unit transmits information by one or more modes among Wi-Fi, WiMax or the Zigbee, and above type of transmission is wireless transmission method, is fit to the communication between the vehicle.Wherein Zigbee is the synonym of IEEE802.15.4 agreement, is characterized in closely, low complex degree, self-organizing, low-power consumption, low data rate, low cost.Mainly be suitable for automatic guidance and remote control field, can embed various device.
Described information transmission unit comprises information receiving module, information translation module and information transmission modular.
Described main truck system and also be connected with in-vehicle multi-media system from the control unit of truck system is so that main car and from carrying out sharing of multi-medium datas such as video, picture, audio frequency between the car.
Personal vehicle system of the present invention can be realized the automatic steering of many cars, alleviates the sense of fatigue when driving over a long distance on express highway significantly, and and then reduce the potential safety hazard of bringing because of fatigue driving, be particularly suitable for making up fleets such as self-driving travel.
Description of drawings
Fig. 1 is the principle schematic of personal vehicle system of the present invention.
The specific embodiment
Describe the present invention in detail below in conjunction with specific embodiments and the drawings.
Embodiment 1:
As shown in Figure 1, the personal vehicle system of present embodiment comprise the main truck system that is installed on the main car and be installed in from the car from truck system, described main truck system and in truck system, include sensing unit, control unit, performance element and information transmission unit, described sensing unit comprises car speed sensor, rotary angle transmitter and external environment condition sensor, described external environment condition sensor comprises image sensing and range only radar, described performance element comprises auxiliary steering mechanism, air throttle control device, shift-position control apparatus and auxiliary brake mechanism, described information transmission unit comprises information receiving module, information translation module and information transmission modular pass through Wi-Fi, one or more modes among WiMax or the Zigbee are transmitted information;
In main truck system: control unit receives collected information of road surface and car speed sensor and the collected motoring condition information of rotary angle transmitter of external environment condition sensor, generate control signal and transfer in auxiliary steering mechanism, air throttle control device, shift-position control apparatus and the auxiliary brake mechanism at least one according to above-mentioned information, with the acceleration of controlling main car, quicken, turn to, motoring condition such as braking;
The control unit of main truck system transfers to the motoring condition information of main car, information of road surface, the control signal that generated according to information of road surface and motoring condition information from truck system by information transmission unit in real time;
From truck system: control unit is known spacing with main car by the external environment condition sensor, and in conjunction with the control signal of motoring condition information, information of road surface and the main car of the main truck system that receives, generation is from the control signal of car and transfer to auxiliary steering mechanism, air throttle control device, shift-position control apparatus and the auxiliary brake mechanism at least one, with the motoring condition of control from car.
Described main truck system and also be connected with in-vehicle multi-media system from the control unit of truck system is so that main car and from carrying out sharing of multi-medium datas such as video, picture, audio frequency between the car.
Main car control unit in the above-mentioned personal vehicle system utilizes the external environment condition sensor to know information of road surface, and realize automatic steering by control execution unit, and utilize the information of main car to control its motoring condition from car, therefore main car and all need not chaufeur from car and get involved; When the situation more complicated of road surface, main car can be controlled by chaufeur, need not chaufeur from car and gets involved and control.This personal vehicle system is particularly suitable for making up the long-distance running of fleets such as self-driving travel, alleviates from car driver fatigue degree, improves travel safety and traveling comfort.
Claims (7)
1. personal vehicle system, comprise the main truck system that is installed on the main car and be installed in from the car from truck system, it is characterized in that described main truck system and in truck system, include sensing unit, control unit, performance element and information transmission unit, described sensing unit comprises car speed sensor, rotary angle transmitter and external environment condition sensor, and described performance element comprises auxiliary steering mechanism, air throttle control device, shift-position control apparatus and auxiliary brake mechanism;
In main truck system: control unit receives collected information of road surface and car speed sensor and the collected motoring condition information of rotary angle transmitter of external environment condition sensor, generate control signal and transfer in auxiliary steering mechanism, air throttle control device, shift-position control apparatus and the auxiliary brake mechanism at least one according to above-mentioned information, to control the motoring condition of main car;
The control unit of main truck system transfers to the motoring condition information and the information of road surface of main car from truck system by information transmission unit in real time;
From truck system: control unit is known spacing with main car by the external environment condition sensor, and in conjunction with the motoring condition information and the information of road surface of the main truck system that receives, generate control signal and transfer in auxiliary steering mechanism, air throttle control device, shift-position control apparatus and the auxiliary brake mechanism at least one, with the motoring condition of control from car.
2. personal vehicle system according to claim 1, the control unit that it is characterized in that main truck system also will transfer to from truck system by information transmission unit according to the control signal that information of road surface and motoring condition information are generated in real time, know spacing with main car from the control unit of truck system by the external environment condition sensor, and in conjunction with the motoring condition information of the main truck system that receives, the control signal of information of road surface and main car, generation is from the control signal of car and transfer to auxiliary steering mechanism, air throttle control device, in shift-position control apparatus and the auxiliary brake mechanism at least one is with the motoring condition of control from car.
3. personal vehicle system according to claim 1 and 2 is characterized in that the external environment condition sensor of described main truck system comprises image sensing and range only radar at least, comprises range only radar at least from the external environment condition sensor of truck system.
4. personal vehicle system according to claim 1 and 2 is characterized in that described main truck system and all comprises image sensing and range only radar at least from the external environment condition sensor of truck system.
5. personal vehicle system according to claim 1 and 2 is characterized in that described information transmission unit transmits information by one or more modes among Wi-Fi, WiMax or the Zigbee.
6. personal vehicle system according to claim 5 is characterized in that described information transmission unit comprises information receiving module, information translation module and information transmission modular.
7. personal vehicle system according to claim 1 and 2 is characterized in that described main truck system and also is connected with in-vehicle multi-media system from the control unit of truck system.
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