摘要:
A method for safety improvement when a motor vehicle (100) having a power train with an engine (230), automatic gearbox (240) and torque converter (237) is stationary and particle filter (320) for the exhaust gases of the engine (230) is being regenerated; The step of applying safety brake action to keep the vehicle (100) stationary despite torque transfer being maintained in the power train. The step of choosing in the gearbox (240) a gear step which is higher than an initial gear step of the gearbox (240) in order to reduce the torque transferred to the vehicle's tractive wheels (247a, 247b) when the vehicle is thus kept stationary. Also a computer program product with program code (P) for a computer (200; 210) for implementing the method. Also a device for safety improvement when a motor vehicle (100) is stationary and a particle filter (320) for the exhaust gases of the engine (230) is being regenerated. Also, a motor vehicle (100) equipped with the device.
摘要:
A method for learning an engine clutch kiss point of a hybrid vehicle includes: controlling, by a controller, an engine clutch which connects an engine with a motor or disconnects the engine from the motor so that the engine clutch is engaged after the controller checks stop of the engine and of the motor and stabilization operation for a hydraulic pressure line of the engine clutch is performed; controlling the motor to have a certain speed after the stabilization operation; controlling the engine clutch to be engaged after speed of the motor is stabilized; determining whether torque variation of the motor when the engine clutch is engaged is equal to or greater than a threshold value; and determining a hydraulic pressure at which the torque variation is the threshold value as the kiss point of the engine clutch.
摘要:
A control system for a hybrid electric vehicle comprises a transmission system configured to drive wheels, an engine power subsystem connected to the transmission system, a motor power subsystem connected to the transmission system and a control module. When vehicle's electrical power is on, the control module is configured to control operating mode of the hybrid electric vehicle through the engine power subsystem and the motor power subsystem. The operating mode comprises HEV-eco mode and HEV-s mode. When the hybrid electric vehicle operates in HEV-eco and the hybrid electric vehicle operates at low power or when the hybrid electric vehicle operates in HEV-s mode and when the vehicle speed is zero, the control module enables the hybrid electric vehicle to operate by idle start-stop strategy.
摘要:
A vehicle includes an engine (12), a first motor generator (MG1), a second motor generator (MG2), a transmission (30), a differential device (20), and an electronic control unit (64, 68, 70). The transmission includes an input shaft, an output shaft, and a clutch. The electronic control unit is configured to detect a rotation speed difference between the input shaft and the output shaft when the clutch is controlled so as to be brought into a power transmission shut-off state. The electronic control unit is configured to, when the rotation speed difference detected by the electronic control unit is smaller than a predetermined rotation speed difference (α) between the input shaft and the output shaft in a case where the power transmission shut-off state of the clutch is established, inhibit the cranking of the engine using the first motor generator (MG1) and to, when the power transmission shut-off state is established, provoke the cranking of the engine using the first motor generator (MG1).
摘要:
A hybrid vehicle which starts an engine safely by using a remote switch even when a charging plug is connected is provided. The hybrid vehicle disclosed in the present specification can be charged from an external power source. The controller of the hybrid vehicle executes the following process, when an engine start request is received while the charging plug for supplying electric power from the external power source is connected to the vehicle. (1) Starting an engine if charging is not performed (S4: NO) and a shift lever is at a parking position when a request for starting the engine (remote start request) is received from a remote switch outside the vehicle (S6: YES, S9), and rejecting a remote start request if the shift lever is at a position other than a parking position (S6: NO, S12). (2) Rejecting a request for starting the engine from a switch provided in the vehicle (S5: IN-VEIHCLE, S7).
摘要:
The present disclosure relates generally to a vehicle (10) and a method of controlling a vehicle which has a material discharge mechanism, such as a tipping or ejection mechanism. The vehicle may be provided with a control system which is configured to engage a brake mechanism (29) and lock an inter-axle differential when it determines that activation of the material discharge mechanism has been requested and the transmission is in neutral mode.
摘要:
Method (400) and calculation device (210) for control of a function (300) in a vehicle (100), such as control of a crane, via an electronic clutch control (200). Method (400) characterised by: determination (401) of the function (300), which the electronic clutch device (200) should control, wherein said function (300) is another function than control of a clutch (240) in the vehicle (100); detection (402) of a position of the electronic clutch control (200); generation (403) of a control signal coinciding with the detected (402) position, and the determined (401) function (300) of the electronic clutch control (200); and control (404) of the determined (401) function (300) via the generated (403) control signal. This allows the use of the clutch pedal (200) to control the clutch (240) or other vehicle elements (300), depending on the function selected via the input (215).
摘要:
An engine-driven vehicle includes an energy recovery system (20) for recovering energy under braking of the vehicle. Under predetermined conditions, a controller selectively delivers recovered energy from a storage (24) via device (26) to motor the engine (12) above zero speed (e.g. at or above idle speed), preferably during engine fuel cut. The engine may be motored if the vehicle speed is below a threshold speed with zero torque demand for the vehicle driveline, or when the vehicle has been brought to a stop, for example. The step of delivering recovered energy to motor the engine (12) may be initiated if a door on the vehicle is opened or if a park brake on the vehicle is activated. Auxiliary systems are driven by the engine under influence of energy delivered from the energy recovery system to the engine when the vehicle is at rest. The energy recovery system may include a mechanical flywheel.