105results about "Road transport" patented technology

The invention relates to the field of vehicle control, in particular to an intelligent oil-saving sliding control method and system for an AMT commercial vehicle and the commercial vehicle, and the method comprises the steps: obtaining a gradient threshold interval and hysteresis width corresponding to a current state based on the total load of the vehicle, the real-time vehicle speed and the real-time road gradient; whether the engine water temperature and the accelerator opening degree signal meet preset fuel-saving sliding admission conditions or not is judged in real time; when all the access conditions are met and the real-time gradient and the vehicle speed are within the threshold interval, gear combination of the AMT gearbox is maintained, an engine is controlled to enter a fuel cut-off mode, and the vehicle enters an intelligent fuel-saving sliding state based on engine reverse towing; and if the real-time gradient exceeds the safety range, engine fuel oil supply is immediately recovered, and the in-cylinder braking or exhaust braking function of the engine can be cooperatively activated, so that the fuel-saving sliding state is stably quitted. And on the premise of ensuring compliance and safety of the whole process, the fuel economy is effectively improved.

The present application discloses a vehicle shift control method, device, electronic device and storage medium, belonging to the field of vehicle technology. The method includes: judging whether the vehicle meets the basic conditions of calculating the target shift point speed and the vehicle's traction capacity after shifting using only a basic shift map, and whether the vehicle is in a coasting state in gear, to generate a first judgment result; determining the target shift point speed and the vehicle's traction capacity after shifting based on driving environment parameters, internal system parameters, target shift mode and the first judgment result; judging whether the vehicle meets the shift conditions based on the internal system parameters, the target shift point speed and the vehicle's traction capacity after shifting, to generate a second judgment result and perform an automatic shift operation based on the second judgment result. The present application can propose a set of gear switching control logic that takes into account both vehicle driving dynamics and fuel economy on the basis of reducing calibration tables, which is conducive to improving the user's driving experience.

This invention provides a control method and apparatus for a dual-clutch transmission. During vehicle coasting, it detects in real-time whether there is a need for braking downshifting. If a braking downshifting need is detected, it determines whether the need is for multiple gear downshifts. If it is, it collects current operating condition information and, based on this information and the target gear, controls the torque of the target clutch in the dual-clutch transmission to maintain the target torque until the vehicle downshifts from the current gear to the target gear. If the need is for a single gear downshift, it uses a coasting-without-throttle downshifting method to downshift from the current gear to the target gear. Based on this invention, it not only solves the problems of jerking caused by untimely downshifting and frequent clutch interaction when braking hard during coasting, but also addresses the issue of weak throttle response after braking during coasting.

Shift control method for a vehicle with a dual clutch transmission, comprising the shift control method: a disengagement start process (S10) of the, when a power-on downshift is initiated, causing a control device to initiate the disengagement of a disengagement-side clutch, so that an engine speed increases to above a speed of the disengagement-side clutch, a first initialization process (S40) of causing the control device to set a torque of the release-side clutch calculated by means of a torque model of the release-side clutch as the pilot torque and causing the torque of the release-side clutch to converge to the pilot torque during a first reference period, a first control process (S50) of which, when the first reference time has elapsed, causes the control device to calculate a feedback torque as a function of a clutch slip change rate and to control the torque of the disengaging clutch using the sum of the feedforward torque and the feedback torque, and a first torque transfer operation (S60) of the, when the control device determines that a preparation for carrying out a torque phase during the execution of the first control operation (S50) is completed, causing the control device to disengage the disengaging clutch for a predetermined second reference time period, so that the torque of an engaging clutch increases in accordance with the torque of the motor.

Method for setting the driving mode of a vehicle (4) powered by at least one electric machine (6), wherein several stages of recuperation operation and a coasting mode are provided for the driving mode, wherein a first operating step or a second operating step is performed with a control element (12, 12a, 12b), wherein each single execution of the first operating step with the control element (12, 12a, 12b) increases the stage of recuperation operation, wherein repeated execution of the first operating step with the control element (12, 12a, 12b) sets a stage of recuperation operation that is higher than a lowest stage of recuperation operation, wherein a first movement is performed when the first operating step is carried out and a second movement is carried out when the second operating step is carried out, wherein the two movements are opposite to each other, characterized in thatthat when performing the second operating step with the control element (12, 12a, 12b) starting from the set higher level of recuperation operation, the sailing operation is directly stopped.

This invention provides a method, apparatus, device, and readable storage medium for generating accelerator pedal maps. The method includes: dividing an initial acceleration response map with no acceleration data into regions corresponding to various preset operating conditions; obtaining and writing the acceleration at each position in each region according to the design scheme corresponding to each preset operating condition to obtain a complete acceleration response map; converting the acceleration in the complete acceleration response map into wheel-side driving torque to obtain a wheel-side driving torque response map; and obtaining an accelerator pedal map for each gear based on the wheel-side driving torque response map and a shift map, wherein the shift map is used to characterize the gear corresponding to different vehicle speeds and different accelerator pedal openings. This invention improves the efficiency of accelerator pedal map generation and facilitates the implementation of a unified power performance style for automobile manufacturers.

A vehicle (1), comprising: a torque generating machine (4); one or more driven wheels (W D ); a drive train (6) for transmitting torque from the torque generating machine (4) to the one or more driven wheels, the drive train (6) comprising torque transmission means (8); a first decoupling mechanism (11) that is operable to decouple the torque transmission means (8) from the torque generating machine (4), wherein the first decoupling mechanism (11) is closed to couple the torque transmission means (8) to the torque generating machine (4) and open to decouple the torque transmission means (8) from the torque generating machine (4); a second decoupling mechanism (12) that is operable to decouple the torque transmission means (8) from the one or more driven wheels, wherein the second decoupling mechanism (12) is closed to couple the torque transmission means (8) to the one or more driven wheels and open to decouple the torque transmission means (8) from the one or more driven wheels; and a controller (2) with at least one electronic processor (P) for controlling the operation of the first and second decoupling mechanism (11, 12), wherein at least one electronic processor (P) is configured to: to determine a target operating speed of the torque generating machine (4); to control the working speed of the torque generating machine (4) depending on the determined target operating speed; to close the first decoupling mechanism (11) when the operating speed of the torque-generating machine (4) corresponds at least substantially to the determined target operating speed; and to close the second decoupling mechanism (12) after closing the first decoupling mechanism (11).

The invention discloses a vehicle stability control method, a controller, a dragging control system controller, a storage medium and a program product. The vehicle stability control method comprises the steps that a first signal related to insufficient steering and a second signal related to excessive steering are obtained; when the vehicle is subjected to sliding recovery, according to the first signal and the second signal, whether an intervention condition for intervening sliding recovery is met or not is judged; in response to the intervention condition being satisfied, intervening the glide reclaim; wherein the intervention condition is set according to the driving working condition of the vehicle. Examples of the present application may provide a better taxiing energy recovery intervention strategy.

The invention relates to a method for operating the drivetrain of a motor vehicle, wherein a sailing mode is described in which, during travel of the motor vehicle, an internal combustion engine in the drivetrain is disconnected and switched off via an intermediate starting element from at least one drive wheel. To end the sailing mode, the internal combustion engine is started as a tow start, during which the starting element transmits torque between the internal combustion engine and the at least one drive wheel, and the internal combustion engine is subsequently towed by the at least one drive wheel.During the tow start procedure, any slippage of at least one drive wheel occurring during the towing of the internal combustion engine is determined, whereby a blocking notice is generated depending on the determined slippage occurring, with the presence of which further tow starts are prevented during a current driving cycle of the motor vehicle to terminate further sailing operations.

The present application relates to the field of vehicle control, and provides a vehicle with-gear coasting control method, device and equipment, the method comprises the following steps: in the vehicle state of loose throttle and loose brake and non-empty gear, it is judged whether the gear is the lowest limit gear of coasting; if it is not the lowest limit gear of coasting, the vehicle enters the gear shift mode after triggering the gear shift point in the coasting process; if it is the lowest limit gear of coasting, it is judged whether the clutch is separated; if the clutch is separated, the first coasting mode with gear is entered; if the clutch is combined, the second coasting mode with gear is entered. The present application solves the problem of abnormal wear of the clutch and impact of the vehicle caused by frequent separation and combination of the clutch during coasting with gear in the prior art, and improves the adaptability and driving comfort of the vehicle in complex scenarios.

The embodiment of the present disclosure discloses a vehicle control method, a vehicle and a computer readable storage medium. The method comprises: acquiring an accelerator pedal signal of a vehicle; in the case that the accelerator pedal signal indicates that the accelerator pedal is faulty, acquiring a brake pedal signal of the vehicle; in the case that the brake pedal signal indicates that the brake pedal is not faulty, starting a vehicle speed control mode to control the vehicle to travel according to the vehicle speed control mode; in the case that the brake pedal signal indicates that the brake pedal is faulty, controlling the current torque of the vehicle to reduce to a first value, so that the vehicle is in a coasting state.

This invention relates to an adaptive coasting control method and apparatus in cruise mode, belonging to the field of assisted driving technology. The adaptive coasting control method in cruise mode includes: acquiring multiple downhill sections within a map data coverage area that meet preset conditions; determining the target downhill section the vehicle is about to reach based on the vehicle's current position; and determining the starting point position for coasting in neutral mode based on the starting point position of the target downhill section, the vehicle's current speed, the target cruise speed, the lower limit of cruise speed fluctuation, and the vehicle's running resistance. This invention reduces the complexity and cost of coasting in neutral mode during cruise through simplified control steps and is applicable to complex roads with multiple downhill sections, improving the flexibility of the coasting control strategy.

Provided are a battery and a battery module. The battery includes a housing, a core, a first connection piece, and a plate. The core is disposed in the housing. The first connection piece is disposed on one end of the housing. The first connection piece is connected to the core. The plate is disposed on the side of the first connection piece facing away from the core. The side surface of the plate facing away from the first connection piece is provided with at least two concave arc-shaped grooves at intervals. All of the arc-shaped grooves are uniformly disposed annularly along the center of the plate. Groove bottoms of the arc-shaped grooves are welded to the first connection piece. According to the battery, the welding effect between the first connection piece and the plate is improved by disposing arc-shaped grooves on the plate.

The present invention discloses a method and device for determining a vehicle's glide mode. The method includes: upon detecting a vehicle downhill event, determining a first energy loss in a first glide mode based on downhill information; the first energy includes mechanical energy; determining a second energy loss in a second glide mode; the second energy includes mechanical energy and fuel consumption; and determining the vehicle's glide mode based on the first and second energies. By implementing the technical solutions provided in the embodiments of the present invention, energy loss during a vehicle's downhill journey can be reduced, thereby improving the vehicle's fuel economy.

To provide a controller capable of suppressing wrong learning of engagement pressure of an engagement side hydraulic frictional engagement device, in a stepped transmission comprising a plurality of hydraulic frictional engagement devices.SOLUTION: When an inertia phase is started in a state in which an engagement pressure PRcb1 of an engagement side engagement device CB1 is a standby pressure PRconst, and a post-correction engagement pressure PRcb1 calculated based on a learning value S calculated after downshift changes to a pressure reduction side with respect to a pre-learning engagement pressure PRcb1, an electronic controller 90 prohibits correction of the engagement pressure PRcb1, so that it is possible to prevent the engagement pressure PRcb1 from being continuously corrected toward the pressure reduction side by the learning value S calculated under a condition that is not suitable for learning.SELECTED DRAWING: Figure 1

Methods, systems, and non-transitory computer readable media configured to perform operations comprise determining, by a computing system, speeds and stations of a plurality of leading vehicles traveling ahead of an ego vehicle; calculating, by the computing system, a coasting viability factor based on the speeds and stations of the plurality of leading vehicles and a speed and station of the ego vehicle; comparing, by the computing system, the coasting viability factor to a coasting viability threshold; and determining, by the computing system, whether the ego vehicle should coast based on the comparing.

This application provides a method and apparatus for determining torque during dual-clutch upshifting. The method includes: acquiring a first torque delivered by the engine before upshifting and an inertial torque when the engine speed is at a target acceleration before upshifting; determining a target required torque for the engaged clutch based on the first torque and the inertial torque; determining a target speed difference between the engaged clutch and the engine; acquiring a friction coefficient compensation coefficient of the engaged clutch at the target speed difference; and determining the final required torque for the engaged clutch based on the target required torque and the friction coefficient compensation coefficient. Considering the speed difference between the engaged clutch and the engine during gear shifting, the calculated final required torque for the engaged clutch is more accurate than using a calibration value in the prior art, providing more accurate torque during upshifting and improving the overall vehicle performance.

A battery-operated vehicle (BOV), comprising a battery configured to provide the source power of the BOV, and at least one processor included in a processing and memory circuitry (PMC) operatively connected to the battery, where the at least one processor being configured to a) obtain data indicative of first and second locations; b) determine data indicative of a battery power consumption that is required to navigate the BOV from the first location to the second location; c) obtain data indicative of a current power level of the battery; d) compare the data indicative of the required battery power consumption to the data indicative of the current power level of the battery for determining remaining battery power status for navigating the BOV from the first location to the second location, and e) provide an indication based on the determination.

The invention relates to a method for operating a drive train of a motor vehicle, in which a coasting mode is presented by deactivating and deactivating an internal combustion engine in the drive train via an intermediate starting element from at least one drive wheel during the travel of the motor vehicle. In order to end the coasting mode, the starting of the internal combustion engine is carried out as a towed starting, and the starting element transmits torque between the internal combustion engine and the at least one drive wheel in the range of the towed starting and thus tows the internal combustion engine via the at least one drive wheel. According to the invention, during the execution of a towed start, a slip of at least one drive wheel occurring when towing the internal combustion engine is ascertained, and a locking remark is generated as a function of the ascertained slip, during a current driving cycle of the motor vehicle, the presence of the lock notes is used to inhibit subsequent towed activations for respectively ending the subsequent freewheeling run.

Method for controlling a drive train during driving of a motor vehicle with a switched-off internal combustion engine for an automatic transmission or an automated transmission having a hydraulic switching arrangement, wherein in a first step (2) a request to switch off the internal combustion engine is sent to a control unit, in a second step (8) a frictional connection is interrupted by means of a hydraulically actuated clutch arrangement between the internal combustion engine and the transmission, in a third step (2) the internal combustion engine is switched off and the motor vehicle is operated with the internal combustion engine switched off, that is to say in coasting mode, in a fourth step (14) a request to switch on the internal combustion engine is sent to the control unit,in a fifth step (24) the internal combustion engine is started and in a sixth step (28) the power connection is established by means of the clutch arrangement between the internal combustion engine and the transmission, characterized in that in the second step (10) in the control unit based on vehicle data (6), such as gradient, speed, rolling resistance, driving resistance, etc., drive train data, such as gear ratio, speeds, etc., route information, such as altitude, driving line, etc., at least one coasting gear is calculated and this is engaged after the interruption of the power flow by means of the circuit arrangement.

A vehicle lower structure includes: a pair of side members; an extending member; a power storage device; and a supported member. The extending member extends from at least one of the pair of side members between the pair of side members. The power storage device is fixed to the pair of side members. The power storage device is disposed below the extending member. The supported member is fixed to an upper portion of the power storage device and supported by the extending member. The power storage device includes a fixation portion. The fixation portion is a portion to which the supported member is fixed such that downward displacement of the fixation portion is suppressed. The supported member is configured such that the fixation portion can be displaced upward.

A vehicle controller includes a processor configured to: determine whether visibility around a host vehicle or rear visibility of a vehicle ahead of the host vehicle is at a level satisfying a predetermined reduction condition, execute pulse and glide driving control of the host vehicle so as to repeat accelerating and coasting within a predetermined vehicle speed range or a range of a distance between the host vehicle and the vehicle ahead, and set at least one of the vehicle speed range, target acceleration at the accelerating, the range of the distance, and a minimum distance between the host vehicle and the vehicle ahead at a switch from the accelerating to the coasting, so as to modify at least one of them, depending on whether the reduction condition is satisfied.

A vehicle includes a controller configured to switch between a constant speed traveling mode in which a vehicle speed is held constant and an inertial traveling mode in which a prime mover is stopped or in an idling state, and a clutch apparatus configured to connect and disconnect power transmission between the prime mover and an output target, and the controller controls the clutch apparatus and decreases a clutch capacity so as to transit to the inertial traveling mode when detected that the vehicle is traveling on a downhill road during the constant speed traveling mode, and the controller controls the clutch apparatus and increases the clutch capacity so as to transit to the constant speed traveling mode when detected that the vehicle traveling on the downhill road has terminated.

Method for activating a sailing mode in a motor vehicle, in which the kinetic energy of the motor vehicle is used to roll as far as possible without the drag torque of the engine braking the motor vehicle, wherein when an automatic cruise control is switched off, the engine can be switched to the sailing mode, characterized in that the cruise control (ACC) can be deactivated completely or at least temporarily in at least two ways (button, BP) and, depending on the type of deactivation (button, BP) of the cruise control (ACC), is switched to the sailing mode (SeM) or to a coasting mode (SB), in which the motor vehicle is braked by the drag torque of the engine.

The invention discloses a prediction control method, device and equipment for cruise driving of a commercial vehicle and a storage medium, and relates to the technical field of auxiliary driving, and the method comprises the following steps: when the vehicle is in a cruise mode, obtaining the type of a road section where the vehicle is located currently, the road slope in front of the vehicle and the road slope length corresponding to the road slope; determining a current predictive driving mode of the vehicle according to the road section type, the road slope and / or the road slope length, wherein the predictive driving mode comprises a pre-acceleration mode, a climbing sliding mode, a climbing gear shifting mode and a neutral gear sliding mode; and a corresponding vehicle control instruction is generated according to the predictive driving mode, so that an engine electric control unit or a gearbox electric control unit executes driving control according to the vehicle control instruction, predictive cruising, gear shifting and sliding control of the commercial vehicle are achieved, the problem that traditional constant-speed cruising is poor in fuel economy under complex road conditions is solved, and the vehicle driving safety is improved. And the fuel economy and the driving comfort are improved.

Vehicle (1), comprising the following: a torque generating machine (4); one or more driven wheels (W D ); a drive train (6) for transmitting a torque from the torque generating machine (4) to the one or more driven wheels, wherein the drive train (6) comprises a torque transmission means (8); a first decoupling mechanism (11) that is operational to decouple the torque transmission means (8) from the torque generating machine (4), wherein the first decoupling mechanism (11) is closed to couple the torque transmission means (8) to the torque generating machine (4) and is open to decouple the torque transmission means (8) from the torque generating machine (4); a second decoupling mechanism (12) that is operational to decouple the torque transmission means (8) from the one or more driven wheels, wherein the second decoupling mechanism (12) is closed to couple the torque transmission means (8) to the one or more driven wheels and is open to decouple the torque transmission means (8) from the one or more driven wheels; and a control device (2) with at least one electronic processor (P) for controlling the operation of the first and second decoupling mechanisms (11, 12), wherein the at least one electronic processor (P) is configured to: Closing the first decoupling mechanism (11); Determining a target operating speed of the torque-generating machine (4); After closing the first decoupling mechanism (11), the operating speed of the torque-generating machine (4) is controlled as a function of the determined target operating speed; and The second decoupling mechanism (12) closes when the operating speed of the torque-generating machine (4) corresponds at least substantially to the determined target operating speed.

The present disclosure relates to a vehicle control apparatus, a system having the same, and a method thereof. The vehicle control apparatus can include a curve generator generating at least one speed curve including a hysteresis section in which deceleration and acceleration due to coasting of a vehicle are repeated, based on an environmental condition of the vehicle, a curve selector selecting a speed curve satisfying a predetermined condition from the at least one speed curve, and a controller controlling a speed of the vehicle according to the speed curve selected by the curve selector.

To achieve both improvement of the durability of a continuously variable transmission and securing of the runnability of a vehicle, as compared with the case where upshift control is performed uniformly.SOLUTION: When an input rotation speed of a continuously variable transmission is equal to or higher than a predetermined rotation speed, which is set based on a predetermined correlation between the input rotation speed and inertia torque that is inputted to the continuously variable transmission by rapid reduction of rotation speed of drive wheels and at which it is necessary to suppress the inertia torque, upshift control is performed for controlling a speed change ratio of the continuously variable transmission to a high vehicle speed side, and therefore, when the inertia torque becomes relatively large in the case where a vehicle travels on a road surface where the drive wheels tend to spin, the input rotation speed of the continuously variable transmission is reduced by upshift of the continuously variable transmission, and the inertia torque inputted when the rotation speed of the drive wheels rapidly reduces is suppressed actually. Further, when the inertial torque becomes relatively small, upshift of the continuously variable transmission is not performed, and driving torque is easily secured.SELECTED DRAWING: Figure 3

To provide a controller of a vehicle automatic transmission that does not erroneously determine that an engine is in a driving state even when the engine is in a driven state during idling up.SOLUTION: When idling up determination means (S12) determines that an engine 30 is under idling up, a determination threshold for determining a driven state is changed by determination threshold change means (S15), thereby enhancing determination accuracy with which driven state determination means determines the driven state based on input torque from the engine 30 during idling up, and avoiding erroneous determination that the engine is in a driving state even when it is in the driven state during idling up.SELECTED DRAWING: Figure 5

The application relates to the technical field of vehicles, and particularly discloses a gear control method and device, a vehicle and a storage medium, the gear control method comprises the following steps: acquiring road condition information in front of the vehicle; evaluating whether the vehicle meets external coasting conditions based on the road condition information; if the vehicle meets the external coasting conditions, acquiring driving information of the vehicle, wherein the driving information at least comprises a vehicle speed, a position of a throttle pedal, an engine speed, a current gear, a fault message and a current working condition of the engine; evaluating whether the vehicle meets internal coasting conditions based on the driving information; and if the vehicle meets the internal coasting conditions, controlling the gear of the vehicle to be engaged in a neutral gear. The gear control method not only judges whether the external coasting conditions are met through the road condition information, but also evaluates whether the vehicle meets the internal coasting conditions through the driving information, so that the vehicle is controlled to enter the neutral gear coasting only when both conditions are met, the safety of the vehicle during the neutral gear coasting is ensured, and the fuel economy is realized.