Abstract:
A hybrid electric vehicle, a drive control method and a drive control device of the hybrid electric vehicle are provided. The drive control method includes: obtaining a current gear position, a current electric charge level of a power battery and a slope of a road on which the hybrid electric vehicle is driving; obtaining a current speed of the hybrid electric vehicle if the current gear position of the hybrid electric vehicle, the current electric charge level of the power battery, and the slope of the road meet a preset condition; and causing the hybrid electric vehicle to enter a small load stall function if the current speed is greater than or equal to a first speed threshold, and less than a second speed threshold.
Abstract:
A hybrid electric vehicle and a drive control method and device thereof are provided. 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, further 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 function; 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 function.
Abstract:
A method for controlling a synchronizer of a vehicle is provided. The vehicle includes an engine unit, a transmission unit, an output unit, a synchronizer, first and second motor generators and a power battery. The transmission unit is configured to selectively couple with the engine unit. The output unit is configured to transmit a power transmitted by the transmission unit to at least one of front and rear wheels of the vehicle. The synchronizer is configured to enable or interrupt a power transmission between the transmission unit and the output unit and to selectively synchronize the output unit and the transmission unit. The first motor generator is coupled with the transmission unit and configured to adjust a rotating speed of an output shaft coupled with the synchronizer according to a speed of the vehicle. The second motor generator is configured to drive at least one of the front and rear wheels. The power battery is coupled with the first and second motor generators, respectively. The method includes acquiring an operation mode and operation parameters of the vehicle; and controlling the synchronizer to engage or to disengage based on the operation parameters.
Abstract:
An energy storage system for balancing the load of a power grid (6) comprises: a controller (3), a plurality of energy storage tanks (1) connected in parallel, and a plurality of controllable switches (2) connected to the plurality of energy storage tanks (1) respectively, in which the controller (3) is configured to detect a frequency and a phase of the power grid (6) and thereby to control the controllable switches (2) to charge the energy storage tanks (1) using the power from the power grid (6) or to input the power from the energy storage tanks (1) to the power grid (6) in accordance with the frequency and the phase of the power grid (6) so as to balance the load of the power grid (6). The energy storage system may balance the load of the power grid (6) so that the power consuming demand can be satisfied during the peak time.
Abstract:
A hybrid vehicle includes a multi-mode power system (102). The power system (102) includes a battery (110), an electrical power input, a first motor/generator (106), a second motor/generator (108) and a clutch (206). A first operationg mode is defined by deactivation of the internal combustion engine (104) and the operation of the vehicle by electrical force provided from the battery (110) to the second motor/generator (108). In a second operating mode, activation of the internal combustion engine (104) generates electrical power by providing rotational force to the first motor/generator (106). In a third operating mode, engagement of the clutch (206) couples the internal combustion engine (104) and the second motor/generator (108) to provide rotational force to the wheels. In a fourth operating mode, engagement of the clutch (206) couples the internal combustion engine (104) with the second motor/generator (108), and the first motor/generator (106) further provides rotational force to the wheels.
Abstract:
A tri-state overrunning clutch is provided, which comprises an outer race (1), an inner race (2), a plurality of wedges (3) arranged between the outer race (1) and the inner race (2), wherein each wedge (3) has a first end (31) and a second end (32) that are opposite to each other and contact with the corresponding working faces of the outer race (1) and the inner race (2), and a retainer (4) arranged between the outer race (1) and the inner race (2) for retaining the wedges (3). The wedges (3) can rotate between the outer race (1) and the inner race (2) such that the second end (32) may leave from its corresponding working face, and thus the disengaged state of the tri-state overrunning clutch is obtained.
Abstract:
A hybrid electric vehicle, a drive control method and a drive control device of the hybrid electric vehicle are provided. 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, further obtaining a current speed of the hybrid electric vehicle; and causing the hybrid electric vehicle to enter a small load stop function or a small load stall function according to the current speed.
Abstract:
A drive control method, a drive control device of a hybrid electric vehicle and a hybrid electric vehicle are provided. The drive control method includes: obtaining a current gear position 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; obtaining a current speed of the hybrid electric vehicle if the current gear position of the hybrid vehicle, the current electric charge level of the power battery, and the slope of the road on which the hybrid electric vehicle is driving meet a preset requirement; and causing the hybrid electric vehicle to enter a small load stop function if the current speed is greater than or equal to a first speed threshold, and less than a second speed threshold.
Abstract:
A transmission unit includes: input shafts, each of the input shafts being provided with a shift driving gear thereon; output shafts, each of the output shafts being provided with a shift driven gear configured to mesh with a corresponding shift driving; a motor power shaft configured to rotate together with one of the output shafts; and an output unit configured to rotate with one of the output shafts at different speeds and configured to selectively engage with one of the output shafts so as to rotate together with one of the output shafts. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
Abstract:
A shifting control method for a hybrid vehicle includes: detecting operating parameters of the hybrid vehicle, where the operating parameters of the hybrid vehicle include vehicle speed, vehicle acceleration as reflected from an accelerator-pedal signal and a current gear of the hybrid vehicle; determining a work mode of the hybrid vehicle; performing speed adjustment and shifting control to a first motor-generator (51) according to the work mode and the operating parameters of the hybrid vehicle to implement shifting control of the hybrid vehicle, where the work mode includes an electric-vehicle mode and a hybrid-electric-vehicle mode. The method considers performing speed adjustment and shifting control under various working conditions. The method improves smoothness and comfort of the vehicle and enlarges the range of use. A power transmission system (100) of a hybrid vehicle and a hybrid vehicle is provided.