Drivers of man-machine cooperative driving intelligent vehicles are affected by driving skills, physiological reactions, and other factors. Under emergency conditions, they often subconsciously forcefully take over control rights and produce unreasonable stress steering, which brings new accident risks to vehicles. To avoid collisions, this paper proposes an emergency collision avoidance control strategy for man-machine cooperative driving vehicles. In the collision avoidance path planning layer, considering the obstacle distance, road adhesion coefficient, vehicle speed, steering wheel stress angle, and driver's linear steering cognition, a circular arc lane-change path is designed. The curvature mutation is smoothed using the third-order Bezier function. In the tracking control layer, a method of additional yaw moment control is designed by using the model predictive control (MPC) algorithm to track the path. The accuracy and safety of vehicle tracking are guaranteed only by adjusting the braking torque of each wheel of the vehicle, to correct the unreasonable input when the driver forces to take over. The co-simulation results show that the collision avoidance control system can effectively correct the unreasonable input during forced take-over, and ensure the safety of stress steering.INDEX TERMS Men-machine cooperative driving vehicles, additional yaw moment control, emergency collision avoidance system, model predictive control.

It is believed that the invariance of the generalised diffeomorphisms prevents any non-trivial dilaton potential from double field theory. It is therefore difficult to include loop corrections in the formalism. We show that by redefining a non-local dilaton field, under strong constraint which is necessary to preserve the gauge invariance of double field theory, the theory does permit non-constant dilaton potentials and loop corrections. If the fields have dependence on only one single coordinate, the non-local dilaton is identical to the ordinary one with an additive constant.

With the resonating group method, we study the non-local Σ - N interaction and spin–isospin dependence of Σ - N in the chiral SU (3) quark model. Meanwhile, the binding energy of hypernucleus [Formula: see text] is calculated based on the non-local Σ - N interaction in the union of channels with (S = 0, T = 1/2), (S = 1, T = 1/2) and (S = 0, T = 3/2). The result shows that there theoretically exists bound state of [Formula: see text]. Furthermore, we analyze the effect of various potentials and relative motion energy between hyperon and core on the binding energy in the model.

Abstract:The product landscape method has been recently proposed to solve hierarchy problems such as the cosmological constant problem. We suggest that the parameter distribution on logarithmic scales should be used as a benchmark for hierarchy, and the preferred hierarchy scales can be obtained from the distribution peak. It is shown that generating hierarchy from purely product distribution is very inefficient. To achieve a reasonably acceptable efficiency, other effects such as accumulation of weak hierarchy in the effective theory should be incorporated.