2019results about How to "Improve driving experience" patented technology

A vehicle communication system facilitates hands-free interaction with a mobile device in a vehicle or elsewhere. Users interact with the system by speaking to it. The system processes text and processes commands. The system supports Bluetooth wireless technology for hands-free use. The system handles telephone calls, email, and SMS text messages. The user can customize the device via a user profile stored on an Internet web server.

The invention provides an interconnection method of a vehicle-mounted terminal and a smart phone. The method is used for realizing the interconnection between the vehicle-mounted terminal and the smart phone; navigation images are mapped to the vehicle-mounted terminal by use of a data wire or WiFi, navigation voice is transmitted to the vehicle-mounted terminal and played by use of the loudspeaker of the vehicle-mounted terminal, and meanwhile, dual-screen two-way control of the smart phone and the vehicle-mounted terminal is realized; a simple and clear navigation interface is formed on a vehicle-mounted screen, and corresponding menu operations can be carried out by use of physical keys on the vehicle-mounted terminal or soft keys on the screen; the intersection scheme is completely realized by software; after successful interconnection, the same navigation interface is displayed on the vehicle-mounted device and the phone; besides, the navigation system can be operated on both the vehicle-mounted terminal and the smart phone. The interconnection method of the vehicle-mounted terminal and the smart phone has the advantages that the switching of display from the small screen of the phone to the vehicle-mounted large screen is realized to better adapt to the use habits of a user in the vehicle, the convenience of driving is comprehensively improved, and the driving experience in the vehicle is developed at an enthusiast level.

The invention provides an energy recovery control method and device of a battery electric vehicle and the battery electric vehicle. The method comprises the steps of judging whether the battery electric vehicle is in a sliding condition; if the battery electric vehicle is in the sliding condition, obtaining a running speed of the battery electric vehicle and first opening of an accelerator pedal, and determining a first speed range to which the running speed belongs; determining a first motor torque curve corresponding to the first speed range according to corresponding relation between a preset speed range and the motor torque curve, and obtaining a torque value corresponding to the first opening from the first motor torque curve according to the first opening of the accelerator pedal; controlling the motor output state of the battery electric vehicle according to the torque value, and performing energy recovery. According to the energy recovery control method, the energy recovery can be performed according to the opening of the accelerator pedal when the battery electric vehicle is in the sliding condition, the defect that sliding energy recovery cannot be controlled by utilizing the accelerator pedal in the prior art is overcome, and the driving feeling of a driver is improved.

The invention discloses an automobile drive simulation system based on a flexible transparent OLED and a control method of the automobile drive simulation system. According to the technologies of the automobile drive simulation system, display of basic vehicle information (including an automobile speed, an engine rotation speed, a cooling water temperature, a battery charge state and the like), augmented virtual reality navigation, pedestrian sensing, front vehicle anti-collision early warning, lane departure early warning, high-light-sensitivity night vision assisting, and vehicle-mounted communication display are involved. The devices of the automobile drive simulation system comprise a flexible transparent OLED display screen, a micro-processor, a camera, a sensor, a GPS chip, a laser millimeter-wave radar, a 3G network chip, a communication and electric power hardness and the like. The automobile drive simulation system is placed on a windshield in front of a driver, can effectively overcome the defects that an automobile head up display system is large in size and contains a small amount of display information and the like, effectively avoids the potential safety hazards which may be caused when the driver checks a central display screen and diverts attention, enables information to be more visual and easier to read, achieves stronger feeling of reality, provides more abundant information and is lower in energy consumption.

The embodiment of the invention provides a method and a device for performing remote air conditioning control on an electric vehicle. The method comprises the following steps: an application software in a mobile terminal sends an air conditioning control order of the electric vehicle to a server through a wireless communication network, and the server sends the air conditioning control order to a vehicle-mounted data terminal of the electric vehicle through the wireless communication network; the vehicle-mounted data terminal sends the air conditioning control order to a whole vehicle controller of the electric vehicle through wired communication, and the whole vehicle controller controls an electronic temperature controller to perform air conditioning control on the electric vehicle according to a charge state of the electric vehicle. According to the embodiment adopted by the invention, the application software in the mobile terminal can be combined with the server to remotely and flexibly control starting and ending of an air conditioning control process of the electric vehicle, so that a user can pre-cool or pre-heat a cab before going out, and the driving experience of the electric vehicle is improved.

The invention provides a braking energy recovery control method and device and an electric automobile. The method includes the steps that on the basis of brake pedal displacement, the total required braking force of a driver is determined; according to capacity limiting conditions of a power system, an electric assistance braking system, the electric automobile and the automobile speed, the largest braking force capable of being provided by a motor is determined; according to different preset corresponding relationships between front axle braking force and rear axle braking force, a judgment threshold value used for braking force distribution is determined; according to the total required braking force of the driver, the largest braking force capable of being provided by the motor and thejudgment threshold value, the required braking force of the motor is determined; and when the required braking force of the motor is larger than zero, the motor is controlled to conduct braking energyrecovery. On the premise that the total required braking force of the driver is not changed, electric braking recovery is conducted to the maximum degree, the purposes that energy recovery efficiencyis high, and the overall braking comfort level of the electric automobile is high are achieved, and driving experience of a user is improved.

A system for automatically controlling the opening degree of an automobile window is used or automatically regulating the opening degree of the automobile window so as to control wind dryness when an automobile runs with the automobile window opened. The control system comprises a rainfall detection unit, an automobile speed detection unit, a unit for detecting the opening degree of the automobile window, an automobile window controller, an automobile window lifting executing unit and the automobile window, wherein the rainfall detection unit is used for detecting information of rainfall outside the automobile, the automobile speed detection unit is used for detecting the speed information of the automobile, the unit for detecting the opening degree of the automobile window is used for detecting the current opening degree information of the automobile window, the automobile window controller is used for receiving the rainfall information, the automobile speed information and the current opening degree information of the automobile window, the target opening degree of the automobile window is obtained according to the rainfall information and the automobile speed information, and the lifting control information of the automobile window is output to the automobile window lifting executing unit after the target opening degree of the automobile window is compared with the current opening degree information of the automobile window; the automobile window lifting executing unit automatically lifts the automobile window up and down according to the lifting control information of the automobile window, and the automobile window can be lifted to the target opening degree of the automobile window.

The invention provides a torque adjusting method of an electric automobile adaptive cruise system, and relates to the field of automobiles. The method includes the steps: calculating desired acceleration speed Vdes (n) by the aid of an adaptive cruise controller; detecting automobile tire pressure Ptir by the aid of a tire pressure sensor; detecting a road gradient Phi by the aid of a tilt angle sensor; detecting weight M of an integrated automobile by the aid of a pressure sensor; detecting actual speed v(n) of a vehicle by a vehicle speed sensor; detecting actual acceleration speed Vact (n)of the vehicle by an acceleration speed sensor; inputting driving environment information by a man-machine interactive system; acquiring a rolling resistance coefficient according to relation functions among the rolling resistance coefficient, a road and tire pressure; implementing front feed adjustment of a standard torque Tfid(n) through a dynamical model; performing correction through adaptivePID feedback to obtain a desired torque Tdes (n); switching maintaining areas to achieve effective switching of driving control and braking control; implementing adaptive cruise control. According tothe method, adjusting time from stabilization to final target acceleration speed is shortened, and stability of the system is improved.

The invention discloses a power following control method and system of an extended-range full electric vehicle. The power following control method comprises the steps that firstly, whether an auxiliary power unit (APU) is turned on or turned off is judged according to a power battery residual capacity value SOC and a full vehicle power demand P<demand>, when the APU is turned on, the generated power P<APU> and an optimum operation working condition point of the APU are further judged, the APU is controlled to work under the generated power P<APU>, when the generated power of the APU follows the full vehicle power demand, power generation of the APU meets the requirements of a driving motor, a power battery is effectively prevented from high-power discharging, and improvement of the servicelife of the power battery is facilitated; and when the power generation of the APU is at the optimum working condition point, the driving motor is supplied with power, the power battery is charged, the full vehicle energy consumption is reduced, and discharging of an engine is optimized. According to the power following control system, the power following control method of the extended-range fullelectric vehicle is adopted, and the problems that in a traditional power following mode, the fuel consumption and discharging of the engine cannot achieve an optimum condition, and the engine frequently starts are solved.

The invention relates to an air conditioning system for a hybrid electric vehicle and a control method thereof and can solve the problem that the temperature in a vehicle cannot be improved in advance in the prior art. According to the key points of the technical scheme, the air conditioning system for a hybrid electric vehicle comprises a direct current regulated power supply, a vehicle air conditioner, an vehicle engine, as well as hybrid storage battery, an air conditioner controller and a controllable selective switch, wherein the mechanical driving front end of a compressor is driven by the vehicle engine through mechanical linkage, the output end of the hybrid storage battery is connected with the controllable selective switch electrically, the control end of the controllable selective switch is connected with the direct current regulated power supply respectively through controllable switches TL1 and TL2, the first output end of the controllable selective switch is electricallyconnected with an electric drive end, the second output end of the controllable selective switch is connected with an electromagnetic clutch through a controllable switch TL3, the control ends of thecontrollable switches TL1, TL2 and TL3 are all connected with the air conditioner controller electrically. The air conditioning system can be used for adjusting the operation state of an air conditioner according to the use conditions of different vehicles.

The invention discloses an intelligent vehicle cooperative lane changing model under a road section mixed driving condition. According to the intelligent vehicle cooperative lane changing model, a vehicle lane changing interaction relationship judgment model is established and based on a fuzzy logic method so as to analyze a vehicle-vehicle interaction behavior under the mixed driving condition; acooperative lane changing game model of manned and unmanned vehicles is established; and a variable cooperation coefficient is introduced to establish a cooperative lane changing game model of the manned vehicle and the unmanned vehicle, and Nash equilibrium solution is carried out on the game model by adopting a Lemke-Howson algorithm to obtain an optimal strategy combination for judging whetherthe vehicle changes the lane or not. Because of establishment of the cooperative lane changing game model of the manned vehicle and the unmanned vehicle, the traffic flow operation efficiency can beeffectively improved, the driving experience of passengers can be greatly improved, and a positive effect on traffic safety is achieved.

The invention relates to an online prediction method and device for the remaining mileage of an electric automobile. The online prediction method comprises the steps of obtaining in-transit data and traveling environment data of the travelling electric automobile, calculating the unit mileage electricity consumption of the electric automobile under the current situation by means of the in-transit data, the travelling environment data and an electricity consumption speed data model, and predicting the remaining travelling mileage of the electric automobile according to the unit mileage electricity consumption. The online prediction device for the remaining mileage of the electric automobile is achieved based on the online prediction method. By adoption of the online prediction method and device for the remaining mileage of the electric automobile, a prediction result is more accurate, the problem that electricity is exhausted when the travelling mileage exceeds a travelling mileage expected by a user, and an automobile cannot continue to travel is avoided, and the user driving experience is improved.

Methods and systems for stopping and starting an engine automatically are presented. In one example, a method inhibits automatic engine stopping in response to output of an on-board camera. The method prevents engine stopping during conditions where little fuel may be saved via automatically stopping the engine.

The invention discloses an intelligent cab control method and device with self-adaptation to the posture of a driver. The method comprises the following steps: installing a first image sensor, a second image sensor and a pressure sensor; acquiring the posture characteristic information of a driver sample in an initialized position and time as well as the corresponding chair attitude data, steering wheel attitude data, attitude data of internal and external rear view mirrors and safety belt attitude data when the driver adjusts to the optimal sitting posture; establishing a database; acquiring the posture characteristic information of the current driver, matching the current driver acquired by measurement with the driver sample stored in the database, thereby searching out the driver sample proximate to the posture characteristic information of the current driver in the initialized position and time; and adjusting the chair attitude, steering wheel attitude, attitudes of the internal and external rearview mirrors and safety belt attitude of the current driver. The intelligent cab control method and device can adapt to the postures of different drivers and enable the drivers to be in the relatively optimal driving environment, and simultaneously can relieve the fatigue of the drivers and ensure safety in driving.

The invention discloses an SOC (State Of Charge) compensation method for a power battery. The method comprises the following steps: after a vehicle is powered on, acquiring a power-off SOC at the previous power-off moment and using the power-off SOC as the current power-on SOC; determining whether the condition of correcting an open-circuit voltage is met; if meeting the condition of correcting the open-circuit voltage, inquiring an OCV-SOC parameter relation table, thereby acquiring a corrected SOC; using a difference of the power-on SOC and the corrected SOC as a to-be-compensated SOC; in a running process of the vehicle, calculating the current SOC according to an ampere-hour integral method and compensating for an SOC value for the current SOC on the basis of driving mileage according to the to-be-compensated SOC till completing the SOC value compensation or the power-off of the vehicle; when the vehicle is powered off, storing the current SOC as the power-off SOC at the power-off moment. According to the invention, the accuracy of the SOC value is guaranteed and the problem of inconsistency of the power-off SOC and the power-on SOC is solved, so that the SOC value jump phenomenon can be avoided and the driving experience can be effectively improved.