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A furniture automatic resetting type press and rebound mechanism comprises a furniture movable part, a furniture immovable part, connecting elements and a fixed support. The furniture movable part is movably arranged on the furniture immovable part in an opening-closing mode, a press and rebound device, a stretchable resetting device and at least two rotating wheels are arranged on the fixed support, the press and rebound device at least comprises pushing and moving elements, and the stretchable resetting device at least comprises stretchable elements and first elastic elements which are mutually matched in an elastic mode; the pushing and moving elements and the stretchable elements are slidably arranged on the fixed support, the at least two rotating wheels are arranged in a relatively independent mode and rotatably arranged on the fixed support, the at least two rotating wheels are mutually matched in a linkage mode when rotating to a certain position, one of the two rotating wheels is in driving connection with the stretchable elements, and the other one of the two rotating wheels is in driving connection with the pushing and moving elements; and swing elements are arranged on the pushing and moving elements, heart-shaped sliding chutes are formed in the fixed support, the swing elements are arranged on the pushing and moving elements in a swinging mode, and one ends of the swing elements sequentially slide along tracks of the heart-shaped sliding chutes towards one direction when the pushing and moving elements slide.

A controller for a motor vehicle powertrain, the controller being configured to control the amount of torque generated by each of a plurality of drive torque sources in order to generate a net torquecorresponding to a predetermined torque demand value, the predetermined torque demand value being determined at least in part by reference to a torque demand signal received by the controller, each drive torque source being coupled via a respective torque transfer arrangement to a respective group of one or more wheels, the controller being configured to cause at least one drive torque source to generate positive or negative torque in dependence on the predetermined torque demand value and to cause the drive torque source to undergo a torque reversal operation in which the direction of torquegenerated by the at least one drive torque sources changes from one direction to the other, the controller being configured wherein, during a torque reversal operation, the controller limits the rateof change of torque generated by the at least one of the plurality of drive torque sources as the amount of torque generated passes through zero and attempts to compensate for the reduction in rate ofchange of torque by a corresponding change in the amount of torque generated by one or more other of the plurality of drive torque sources.