293 results about "Electronic stability control" patented technology

Methods of assessing driver behavior include monitoring vehicle systems and driver monitoring systems to accommodate for a driver's slow reaction time, attention lapse and/or alertness. When it is determined that a driver is drowsy, for example, the response system may modify the operation of one or more vehicle systems. The systems that may be modified include: visual devices, audio devices, tactile devices, antilock brake systems, automatic brake prefill systems, brake assist systems, auto cruise control systems, electronic stability control systems, collision warning systems, lane keep assist systems, blind spot indicator systems, electronic pretensioning systems and climate control systems.

A three-wheeled vehicle having a pair of front wheels and a single rear wheel is provided with an electronic stability system (ESS) to control certain operating parameters of the vehicle based on sensed inputs from the three wheels. Preferably, the three-wheeled vehicle has a straddle type seat, an internal combustion engine, and road tires suitable for conventional road use.

A double-motor driving type electronic hydraulic brake system capable of actively simulating pedal feeling comprises a brake pedal, a fluid storage tank used for storing brake fluid, a pedal displacement sensor, a pedal force sensor, a hydraulic force sensor, an electronic control unit, an electromagnetic valve, an electronic stability control module, a brake master cylinder and a secondary master cylinder. An electric control linear movement module comprises a rotating motor and a speed reduction and moment increasing mechanism which converts the rotating movement of the motor into linear movement to achieve the active control over system hydraulic brake force and pedal force. The pedal force of a driver can be fully used for reducing pressure. While the active control over the pedal force is achieved, a pedal force simulator of a complex structure is omitted, the feeling of a brake pedal is guaranteed, and the accurate automobile brake condition is fed back to the driver. The active control over the hydraulic force is achieved, and the brake requirement for automatic driving vehicles is met; maximum braking energy recovery is achieved, control is precise, and the response speed is high; double-loop braking is achieved, failure protection is considered thoroughly, and the safety is good.

The present invention provides a method and system for predicting the lateral acceleration of a vehicle, especially a commercial vehicle train. The expected lateral acceleration is used to prevent vehicle rollover during critical driving situations. The expected lateral acceleration is calculated in advance using the vehicle's steering angle and speed, or obtained from a lookup table containing predefined combinations of steering angles and speeds corresponding to lateral acceleration values. The expected lateral acceleration is used in the place of, or in addition to, measured instantaneous lateral acceleration to realize a lead time in which early braking of the vehicle by an electronic stability control system or a rollover stability control system is effected, compared to regulation based on measured lateral acceleration alone.

Alternative driving modes are disclosed, electric vehicle driving modes and methods of use are described. A vehicle includes a driving mode selection unit. The driving mode selection unit may be used to select a specific driving mode from among a plurality of driving modes. The vehicle may be able to use more energy in the first driving mode than in the second driving mode. The driving modes may include at least three vehicle system operating profiles, including an electric motor torque command profile, a regenerative braking level profile, an electric power steering profile, an electronic stability control profile, an antilock braking system profile, and At least three of the top speeds.

Disclosed is a driver assistance method and system for avoiding violation of traffic lights. The method includes: 1, searching for and determining location of a road traffic light where a vehicle locates, and performing a step 2; 2, calculating change time gap t_g of the road traffic light where the vehicle locates, and performing a step 3; 3, comparing the time time-gap required for the vehicle to reach a warning line and the change time gap t_g, and judging whether the current vehicle is about to violate the traffic signal light or not; if yes, executing automatic emergency braking; if not, determining that the current vehicle does not violate the traffic light. The system comprises an automatic emergency bake controller, a vehicular camera, a vehicle electronic stability control system, and a wireless communication transceiving device, wherein the vehicular camera and the vehicle electronic stability control system are connected with the automatic emergency brake controller respectively through buses. The method and system has the advantages that the defects of the existing automatic emergency brake system are made up, the traffic lights can be recognized, corresponding brake judgments are made then, and violations of traffic lights, such as a bicycle running the red light or yellow light, can be avoided effectively.

The invention discloses a night vision navigation integration system and a control method. The night vision navigation integration system comprises a thermal imaging camera, a night vision controller, an instrument, a DVD, a steering wheel angle sensor, a vehicle body control unit, an engine controller, a transmission controller and an electronic stability program. The thermal imaging camera collects road condition images. The night vision controller analyzes a video signal, identifies a pedestrian in the video signal, judges the relative distance between a vehicle and the pedestrian and relative speeds of the vehicle and the pedestrian according to a steering wheel angle signal, a vehicle speed signal and the installation position of the thermal imaging camera, predicts movement tracks of the vehicle and the pedestrian, judges the collision risk degree of the vehicle and the pedestrian, and sends out warning instructions and/or braking request instructions of different grades according to the collision risk degree. The instrument sends out warning information. The engine controller restrains throttle percentage responses generated by an engine on an accelerator pedal. The electronic stability program controls active pressurization of a pressure cylinder. The night vision navigation integration system and the control method can improve running safety.

A hydraulic double-motor driving electronic hydraulic braking system comprises a braking pedal, a braking master cylinder, a secondary master cylinder, a liquid storage tank, a pedal displacement sensor, a hydraulic pressure sensor, an electronic control unit ECU, a first electronic control linear moving module and a second electronic control linear moving module for performing active control on hydraulic braking force and pedal force of the system, an electronic stability control module ESC for regulating the hydraulic braking force of each wheel cylinder, a tee joint for connecting hydraulic pipelines between the braking master cylinder and the inlet of the electronic stability control (ESC) module as well as between the secondary master cylinder and the inlet of the ESC module. According to the invention, the pedal force of a driver can be utilized for pressure establishing, the active control on the pedal force is realized while a pedal force simulator with a complex structure is omitted, braking pedal feel is ensured, the braking intention of the driver can be correctly reflected, the active control on hydraulic pressure is realized, the braking requirement of a vehicle is met, maximum braking energy recycling can be realized, the control is precise, and the response speed is high.

A system and method for controlling the operation of stabilizing the movement of a vehicle between primary and secondary drivers is provided. A primary key is adapted to be associated to the primary driver. A secondary key is adapted to be associated to the secondary driver. A key ignition device is positioned on the primary and secondary keys and is configured to generate driver status signals indicative of whether the driver is a primary or secondary driver. The controller is adapted to determine whether the driver of the vehicle is the primary driver or the secondary driver based on the driver status signals. The controller is further adapted to stabilize the movement of the vehicle. The controller is further adapted to selectively control the operation of stabilizing the movement of the vehicle in response to the driver status signals.

The invention provides an automobile starting/stopping system with a traffic light identifying function and a control method thereof, belonging to the technical field of automobiles. Through the system and method thereof, the problem that the vehicle does not have an automatic starting/stopping function in the traffic light condition in the prior art is solved. The system comprises a traffic light detection device, an electronic control unit, a vehicle electronic stability control system and an electronic accelerator pedal, wherein the traffic light detection device is connected with a signal input end of the electronic control unit; and the electronic stability control system (ESC) and the electronic accelerator pedal are connected with a signal output end of the electronic control unit respectively. The control method comprises: A, a step of image signal acquisition; B, a step of image signal pretreatment; C, a step of image analysis treatment; and D, a step of starting/stopping control. The system reduces the driving fatigue of the driver and realizes easier and safer driving.

The invention relates to a full-automatic vehicle backing minor control method and a full-automatic vehicle backing minor control system. The full-automatic vehicle backing minor control system mainly comprises an image processing module, a radar probe, a CAN transmitting and receiving module and a master control module, wherein the image processing module identifies video signals acquired by a camera and outputs identity signals to the master control module; the radar probe is used for transmitting and receiving ultrasonic waves and outputs ultrasonic wave signals to the master control module; the CAN transmitting and receiving module is used for realizing real-time transmission of information between an engine control unit, a gear box control module, an electronic power-assisted steering unit and an electronic stability control unit; and the master control module is used for processing the signals from the image processing module and the radar probe, responding the signals in the interrupt mode, and maintaining connection with the CAN transmitting and receiving module. The full-automatic vehicle backing minor control method and the full-automatic vehicle backing minor control system solve the problem that a common vehicle backing minor control system can not precisely guide a driver to back a vehicle.

The invention discloses an emergency braking intervention system before collision. The system comprises an own car motion state sensor, an environment sensor, a braking mechanism controller, a motor controller, a gearbox controller, a system switch, a road condition mode selection module, a car body electronic stability control system and a controller which is capable of determining danger degrees according to the road condition mode, the own car motion state and the environment state and emits control signals. The system switch is connected with the road condition mode selection module, the road condition mode selection module, the own car motion state sensor and the environment sensor are all connected with the controller, a control single output end of the controller is connected with a control signal input end of the braking mechanism controller and a control signal input end of the motor controller, a control signal input end of the gearbox controller and a control signal input end of the car body electronic stability control system. By means of the system and the method, damage to a motor and a transmission system by emergency braking is reduced, the emergency braking distance is shortened, and the safety of the car during traveling is improved.

The invention discloses a road curvature based self-adaption vehicle speed adjustment system and method. The road curvature based self-adaption vehicle speed adjustment system includes a sensor module, a map module, a positioning module, a CAN network, a central decision-making unit, an engine control system and an electronic stable program; the central decision-making unit calculates a target control speed Vm under a lane radius while determining that a curve having the lane radius R less than or equal to RF exists in an M-meter range on the front of a vehicle according to information recognized by the sensor module and information provided by the map module and the positioning module, compares the target control speed Vm and a speed Vacc calculated by a self-adaption cruise system in theworking condition, and takes a minimum value of the Vm and the Vacc as a final target control speed Vf; and the central decision-making unit sends a deceleration control command according to the final target control speed Vf, and performs deceleration control. The road curvature based self-adaption vehicle speed adjustment system and method start deceleration before the vehicle enters the curve,and can ensure the safety and the comfort of driving.

The invention provides a control method and system for remote driving of an electric vehicle. The method is applied to an entire vehicle controller of the electric vehicle. The control method comprises the following steps: obtaining a running state of each component of the electric vehicle when a remote driving function of the electric vehicle is judged to be in an on state; acquiring a first current vehicle speed when an electronic stability controller of the electric vehicle fails or at least one device of a hydraulic brake and an electronic caliper of the electric vehicle is in a faulty state; outputting a first control signal toa drive motor controller if the current speed is not zero, allowing the drive motor controller to control a drive motor to output the maximum braking torque, and outputting a second control signal to a parking gear controller when the vehicle speed is reduced to zero, and allowing the parking gear controller to control the parking gear parking mechanism to be locked. The braking redundancy control is provided, and the safety and reliability of the braking of remote driving of the vehicle are improved.

A vehicle electronic stability control system allows a vehicle to have improved movement performance and limit performance without causing a driver to feel uncomfortable, by actuating electronic stability control from a state where a lateral slip is relatively less likely to occur. The system prevents skidding of a vehicle including motors which individually drive a pair of left and right drive wheels. A stability determination module obtains information indicating vehicle behavior from a sensor, and determines whether or not the vehicle is in an unstable or less stable state, on the basis of the information. A braking/driving force control module which, when the stability determination module determines that the vehicle is in the unstable or less stable state, applies a braking force to one of the drive wheels, and simultaneously applies a driving force to the motor for the other drive wheel.

A vehicle includes a semi-active suspension including suspension dampers controllably adjustable in accordance with electronic stability control commands and ride and handling commands. Vehicle steering response states, turning direction states and vehicle dynamics states are binary coded in respective state variables and suspension control calibrations are binary coded in calibration words. Integrity and security of state variables and calibration words are ensured in efficient binary digit resource allocation schemes.

The invention discloses an intrusion prevention system for a vehicle-mounted information system. The intrusion prevention system comprises a power transmission system, an electric power steering system, an electronic stability control system, an instrument panel, a diagnostic system, a vehicle body control system, a sensor, an accelerator, a multimedia system and a vehicle-mounted mobile phone. The power transmission system, the electric power steering system, the electronic stability control system, the vehicle body control system and the multimedia system are connected with the diagnostic system through a gateway, the diagnostic system is connected with the vehicle-mounted mobile phone, the instrument panel is connected with the vehicle body control system and the power transmission system, and the sensor and the accelerator are connected with the vehicle body control system. Compared with the prior art, the powerful calculation capability and storage capability of the mobile phone are utilized, the mobile phone is set as an intrusion prevention center; the formulation of safety regulations, storage of a virus reservoir, the judgment of security situation awareness and the connection with a cloud are all finished through the mobile phone, users' life and property safety is guaranteed, and the intrusion prevention system has popularization and application values.

The invention discloses loop testing stand on which the closed car electronic stability control system hardware. The testing stand includes electronic control device and hydraulic control device. The former is made up of host machine, target machine, data collecting card, self-control circuit board, electronic throttle, four brake cylinder pressure transducers, steering handle corner transducer, master cylinder pressure transducer, and brake paddle switch. The latter is made up four brake tongs and friction plates, four brake cylinders, brake master cylinder, and hydraulic pressure regulator. The testing stand can test and study the ESP principle and characteristic, supply testing condition for various control logic searching, reduce real car road test times and cost.

The invention discloses a vehicle tire burst controlling device and a controlling method thereof. The vehicle comprises tire-pressure monitoring sensors arranged on each tire, an intelligent light controller, an electronic stability control system ESC, an engine system and an automobile steering system; comprises a main controller, an air bag set arranged on the lower surface of a vehicle chassis close to each tire and an alarm processing apparatus; wherein each air bag set comprises several air bags which are parallel to side surfaces of tire and arranged at intervals. The vehicle tire burst controlling device can automatically keep the vehicle balance after tire burst, traveling track of the vehicle before tire burst can be kept; possibility of errant vehicle is reduced, driving security of the vehicle is increased, and reliable guarantee for life safety of the drives can be provided.