45results 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.

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.

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.

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.

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.

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.

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.

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.

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.

A mobility device that can accommodate speed sensitive steering, adaptive speed control, a wide weight range of users, an abrupt change in weight, traction control, active stabilization that can affect the acceleration range of the mobility device and minimize back falls, and enhanced redundancy that can affect the reliability and safety of the mobility device.

According to one aspect of the present invention, there is provided a method for controlling an inertial driving mode of a commercial vehicle, the method comprising the steps of: determining at least one of a driving state of a commercial vehicle and a slope state of a road on which the commercial vehicle is driving; and setting a driving mode of the commercial vehicle to an inertial driving mode in response to the driving state of the commercial vehicle satisfying a first condition or the slope state satisfying a second condition, wherein the driving mode of the commercial vehicle is switched from the inertial driving mode to a power driving mode in response to a state of a braking means of the commercial vehicle satisfying a third condition.

To provide a travelling control device configured to enable opportunities to execute a coast travelling mode from increasing.SOLUTION: When a gradient in a downhill road satisfies a predetermined condition in a cruise travelling mode, a CPU switches the mode to a coast travelling mode. When an own vehicle VC(1) is travelling in a tunnel in which vehicles travel on a one-way road, the CPU switches the mode to the coast travelling mode, even when the vehicle is travelling on a sloping road gentler than a road on which the vehicle is travelling outside the tunnel.SELECTED DRAWING: Figure 5

This disclosure provides a coasting control method for an environmentally friendly vehicle. The method includes: determining at least one valid event among deceleration events on the forward driving path that set a target speed; setting the valid event closest to the current position among the at least one valid event as a first candidate event; determining whether there is at least one second candidate event corresponding to the event to be followed among the remaining valid events other than the first candidate event; and when there is at least one second candidate event, determining the target event among the first candidate event and the second candidate event by considering the control start point.

To provide a front / rear drive force distribution device of an all wheel drive vehicle which prevents a main drive wheel from becoming a minus torque without lowering a precharge pressure of a transfer clutch in a travel state where front / rear rotation difference is generated at the time of driving, and a transfer input torque is less than a fastening torque, and can prevent deterioration of fuel consumption and drivability.SOLUTION: A front / rear drive force distribution device 1 includes: a one-way clutch 51 which transmits a drive torque input to a front drive shaft 43 side from a secondary shaft 37 side, and shuts off a coast torque input to the secondary shaft 37 side from the front drive shaft 43 side; and a connection / disconnection mechanism 52 which is arranged between the secondary shaft 37 and the transfer clutch 41, and connects / disconnects torque transmission between the front drive shaft 43 and a rear wheel transmission shaft 39. The connection / disconnection mechanism 52 is released when the drive torque is input, and is fastened when the coast torque is input.SELECTED DRAWING: Figure 2

The application provides an engine control method and device, a vehicle and a storage medium, relates to the technical field of vehicles, and is used for avoiding frequent start and stop of an engine during vehicle driving. The method comprises the following steps: acquiring real-time state information of a vehicle and a congestion level and a road type of a road section currently passed through by the vehicle when the vehicle is in a coasting state, the congestion level comprising a first congestion level or a second congestion level, the vehicle flow corresponding to the second congestion level being greater than the vehicle flow corresponding to the first congestion level; determining an engine stop condition based on the road type of the road section currently passed through by the vehicle; determining whether the real-time state information of the vehicle meets the engine stop condition; and instructing the engine of the vehicle to stop in the case that the congestion level is the first congestion level and the real-time state information of the vehicle meets the engine stop condition.

The present application relates to a kind of two-way overrunning clutch and automobile power transmission system.Two-way overrunning clutch includes outer ring, inner ring and cage, outer ring includes outer ring body and connecting part, connecting part is provided with outer ring bearing, cage includes cage body, cage body is movably arranged in the inside of outer ring and is provided on inner ring, the outer side wall of one end of cage body is provided with fixed part along the circumferential direction, the side end face of fixed part is provided with arc-shaped first positioning sliding groove and second positioning sliding groove, first positioning sliding groove and second positioning sliding groove are movably provided with first positioning ball and second positioning ball respectively;Constraint positioning device is arranged on one end of inner ring outside fixed part.The two-way overrunning clutch of the present application has the characteristics of safe and reliable;At the same time, automobile power transmission system can be self-powered without speed inertia without interruption to the wheel with road adhesion, so as to improve the off-road travel ability of automobile.

A vehicle control device (50) for a vehicle with an internal combustion engine (12, 202) used as a power source and an automatic transmission (14, 16, 204), wherein the vehicle control device (50) performs a first driving mode in which shift control of the automatic transmission (14, 16, 204) and drive force control are provided in accordance with acceleration / deceleration by the driver, and a second driving mode in which shift control and drive force control are provided without acceleration / deceleration by the driver, while a target driving condition is set, wherein it has: a control section (66) for driving on an inclined road, which is configured to control the automatic transmission (14, 16, 204) in such a way that an internal combustion engine speed is maintained high during driving on an inclined road on at least one of the roads uphill road and downhill road compared to driving on a flat road, characterized in that the control section (66) for driving on an inclined road limits the increase in the combustion engine speed in the second driving mode compared to the first driving mode, The second driving mode includes a following driving mode in which a target drive force is calculated to enable following a preceding vehicle, and the target drive force is used as the target driving condition, while the steering angle is specified by the driver, and an automatic drive driving mode in which the target driving condition is set based on road information for automatic acceleration / deceleration, and the steering angle is automatically controlled based on the driving route, and The control section for driving on an inclined road makes the increase in the combustion engine speed in the following driving mode smaller than in the first driving mode, and makes the increase in the combustion engine speed in the automatic drive driving mode smaller than in the following driving mode.

An electric vehicle includes several features to improve ridesharing and / or package delivery services. The vehicle includes electric motor(s) and / or auxiliary system(s) disposed along or under the floor to increase the size of the cabin without increasing the overall size of the vehicle. The passenger seats are foldable and movable to provide a contiguous cargo space. The side door includes an integrally formed B pillar to provide a larger opening on the side of the vehicle when the side door is open for ingress and egress of both the driver and passengers. Each wheel includes an electroactive suspension system to tilt the vehicle in different directions to facilitate greater ease of ingress and egress and / or loading and unloading of cargo. The vehicle includes a user interface system to assist the driver with package delivery services. The vehicle also connects to a trailer that provides electric propulsion and active steering.

The present invention relates to vehicle coasting optimization. Methods and systems for vehicle coasting optimization are described. The system can include a vehicle having an engine, a powertrain, and a throttle. The system can include selecting a fuel saving mode based on an anticipated braking requirement in response to detecting that the vehicle is non-stationary and the throttle is not depressed. The system can include generating instructions corresponding to the selected fuel saving mode, wherein the instructions are configured to control at least the engine and the powertrain.

To provide a vehicle control device which can perform a pulse and gride travel of an own vehicle without giving uneasiness to a driver of a preceding vehicle.SOLUTION: A vehicle control device comprises: a determination part 31 which determines whether the degree of visibility around an own vehicle 10 or the degree of rear visibility of a preceding vehicle that precedes the own vehicle 10 satisfies a prescribed decrease condition or not; a travel control part 33 which performs a pulse and gride travel of the own vehicle 10 so that acceleration travel and inertia travel are repeated in a prescribed vehicle speed range or in a variation range of a vehicular gap between the own vehicle 10 and the preceding vehicle; and a setting part 32 which sets at least one of the vehicle speed range, target acceleration at the time of the acceleration travel, the variation range of the vehicular gap, and a minimum vehicular gap between the own vehicle 10 and the preceding vehicle at the time of changeover from the acceleration travel to the inertial travel to change at least one of them.SELECTED DRAWING: Figure 2

A method for preventing inertia reverse conduction comprises the steps that secondary gears are constructed, each secondary gear is formed by fixedly connecting two gears different in size, the inner sides of the two or more secondary gears are meshed with a fixed gear and an output gear respectively, the axis of the fixed gear coincides with the axis of the output gear, and the axis of the output gear is meshed with the fixed gear; the fixed gear is fixedly arranged on the box body, revolution of the two or more secondary gears is used as input, and the output gear forms autorotation output through the design of the transmission ratio between the secondary gears and the fixed gear and the design of the transmission ratio between the secondary gears and the output gear; the revolution of the secondary gear forms the rotation output of the output gear, when the speed of the output gear is changed under the inertia effect, the rotation of the secondary gear is changed, at the moment, due to the effect of the fixed gear, the acceleration or deceleration of the rotation of the secondary gear is prevented, and the rotation speed of the secondary gear is increased. And the output gear can only maintain the speed given by the revolution input of the secondary gear.

The utility model discloses a reverse hook type over-gear-preventing gear shifting arm assembly and a speed change drum control mechanism. The gear shifting arm assembly comprises a gear shifting arm and a limiting piece which is arranged on the gear shifting arm in a linkage mode and used for preventing a gear shifting rotary disc from rotating in an over-gear mode. The limiting piece is provided with a reverse hook used for being arranged on a gear shifting boss of the gear shifting rotary table in a hooked mode in the direction opposite to the rotation direction of the gear shifting rotary table after gear shifting is completed. According to the reverse hook type over-gear-preventing gear shifting arm assembly and the speed change drum control mechanism, the structure of the limiting piece is improved, and the reverse hook is additionally arranged on the limiting piece, so that the reverse hook and the gear shifting boss can form a seizure state; therefore, the rotation inertia of the speed change drum can be effectively overcome, the speed change drum can be effectively prevented from jumping to shift gears, and the driving safety and the user experience feeling can be improved.

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.

To provide a vehicle travel device which can reduce an energy amount consumed to travel an own vehicle without giving discomfort feeling to a driver of the own vehicle.SOLUTION: A vehicle travel device 10 executes autonomous acceleration / deceleration control of starting coasting control when a distance between a vehicle and a preceding vehicle 200 increases and reaches an upper limit value of a predetermined distance range, starting acceleration control when the distance with the preceding vehicle decreases and reaches a lower limit value of a predetermined distance range, and thereby autonomously controlling acceleration / deceleration of the own vehicle 100 so that the distance with the preceding vehicle is settled within the predetermined distance range. When a travel speed of the own vehicle becomes a predetermined speed or less, a travel speed of the preceding vehicle is higher than the travel speed of the own vehicle, and a difference between the travel speed of the own vehicle and the travel speed of the preceding vehicle is a predetermined speed difference or more, during execution of the coasting control, the vehicle travel device continues the coasting control until a predetermined time elapses, even when the distance with the preceding vehicle increases and reaches the upper limit value of the predetermined distance range.SELECTED DRAWING: Figure 4