摘要:
Method for controlling a driveline of a hybrid vehicle, in particular of an industrial or commercial vehicle, the driveline comprising a thermal drivetrain (E), a gearbox (GR) connectable to said thermal drivetrain (E) by means of a main clutch (MC), and an electric drivetrain (EE) connectable to the driveline in a point thereof between said gearbox (GR) and a drive axle (DS) of the vehicle, the method comprising a step of activating said electric drivetrain to drive the driveline during a gear change (A), while the vehicle is accelerating (B).
摘要:
The invention relates to a method, system, vehicle, and computer program product for gear shifting in a hybrid powertrain, that comprises an internal combustion engine; an electric machine; a gearbox; and an energy storage unit connected to the electric machine, and at least one control unit arranged in communication with the internal combustion engine, the electric machine, the gearbox and the energy storage unit. The method comprises the steps of: determining an energy level in the energy storage unit; determining an acceleration ability with a subsequent gear; determining a target engine speed for the internal combustion engine based on the energy level in the energy storage unit and the acceleration ability; and controlling the gear shifting based on the target engine speed.
摘要:
A drivetrain for an agricultural vehicle and method for controlling the same. The drivetrain includes first and second driven axles with a variable pivot angle hydraulic motor connectable to drive the first axle through engagement of a first clutch mechanism. A further motor is connected to drive the second axle. In operation, the pivot angle of the variable pivot angle hydraulic motor is reduced with variation in a vehicle parameter value, such as transmission ratio or ground speed, to a point at which the pivot angle reaches zero at a first parameter value. With the pivot angle at zero and parameter value continuing to vary due to the drive of the further motor, the first clutch mechanism is disengaged at a second parameter value, with the first and second parameter values separated by an interval determined at least partly by an operating characteristic of the first clutch mechanism.
摘要:
A start-up controller of an engine includes a shift-position detector (32), a first setter (4a) and a limit controller (5). The shift-position detector (32) detects whether a position (R NG ) of a select lever of an automatic transmission (26) is in a driving range. The first setter (4a) determines a limit rotation rate (Ne LIM_H ) based on the position (R NG ) detected by the shift-position detector (32) at start-up of the engine (10) as a limit of the rotation rate of engine. The limit rotation rate (Ne LIM _ H ) is determined lower when the position (R NG ) is in the driving range compared to when the position (R NG ) is not in the driving range. A limit controller (5) performs limit control for controlling the actual rotation rate (Ne) of the engine so as not to exceed the limit rotation rate (Ne LIM _ H ) determined by the first setter (4a). Such a configuration prevents revving-up of the engine at start-up while improving the start-up performance.
摘要:
A vehicle power transmission system includes: a transmission; a shift actuator; a clutch; a clutch actuator for mutually switching between the transmission and the shutting off of a driving force at the clutch; and a control device being configured to, when having detected that the vehicle is in the travelling state and that the clutch actuator is abnormal by use of the travelling state detection sensor and the CA abnormality detection sensor, control the operation of the shift actuator and cause the selected gear stage in the transmission to be shifted into neutral before the vehicle comes to a stop while shifting the selected gear stage in the transmission into a gear stage having a lower gear ratio.
摘要:
To provide a braking force control apparatus for a saddle ride-type vehicle, which generates braking force when switching a transmission from a neutral state to an in-gear state. A braking force control apparatus for a saddle ride-type vehicle, including: a control device (106) configured to control a transmission (40) which reduces driving force of an engine (100) by a predetermined speed reduction ratio and transmits the driving force to a drive wheel (WR) of a vehicle (1), a clutch device (108) which connects and disconnects the driving force between the engine (100) and the transmission (40), and a brake device (BR) which generates braking force on the drive wheel (WR), wherein the transmission (40) is configured to be capable of switching between a neutral state where gear trains are mechanically disconnected and an in-gear state where the disconnected gear trains are mechanically connected, and upon detection of switching from the neutral state to the in-gear state, the control device (106) causes the brake device (BR) to generate braking force (B) on the drive wheel (WR), and then releases the braking force (B) upon completion of the switching operation to the in-gear state.
摘要:
The present disclosure provides a hybrid electric vehicle, a drive control method and a drive control device of a hybrid electric vehicle. The drive control method includes: obtaining a current gear position and a current operating mode of the hybrid electric vehicle, a current electric charge level of a power battery and a slope of a road on which the hybrid electric vehicle is driving; determining whether the hybrid electric vehicle is within a taxiing start-stop interval according to the current gear position of the hybrid electric vehicle, the current electric charge level of the power battery, and the slope of the road; if the hybrid electric vehicle is within the taxiing start-stop interval, obtaining a current speed of the hybrid electric vehicle; and causing the hybrid electric vehicle to enter a small load stop mode or a small load stall mode according to the current speed.
摘要:
The present disclosure provides a drive control method and a drive control device of a hybrid electric vehicle. The method includes: obtaining a current gear position of the vehicle, a current electric charge level of a power battery and a slope of a road on which the vehicle is driving; determining whether the vehicle is within a taxiing start-stop interval according to the current gear position, the current electric charge level, and the slope; if the vehicle is within the taxiing start-stop interval, obtaining a current speed of the vehicle; if the current speed is greater than or equal to a first speed threshold, and less than a second speed threshold, causing the vehicle to enter a small load stop mode; and if the current speed is greater than or equal to the second speed threshold, and less than a third speed threshold, causing the vehicle to enter a small load stall mode.
摘要:
A controller (20) causes a clutch (9) to transition from a half-engaged state to an engaged state when a difference in rotational velocity between input and output sides in the clutch (9) falls in a predetermined range in the half-engaged state of the clutch. The controller (20) executes a moving start control to increase an output rotational velocity of a prime mover (4) and cause the clutch to transition to the engaged state when a predetermined first condition is satisfied in the half-engaged state of the clutch (9).