This paper addresses the problem of energy-efficient power assist control for quasiperiodic motions. The simplest assist method would be to apply additional torque in proportion to the instantaneous value of torque generated by a user. In our previous study, it was shown that energy efficiency improves by flattening the torque pattern. To cope with the frequency fluctuation of our motion, we in...

In order to solve the problem where traditional electric power steering system (EPS) provides too much assist torque under low load and adhesion coefficient, which damages driver’s road feeling affects driving safety, this paper designs a multi-map EPS control strategy. First, based on change of resistance different front axle loads coefficients, characteristics considering coefficient were des...

The Jarvik-2000 is an axial-flow left-ventricular-assist-device (LVAD) designed for permanent use. The power supply is provided by a cable plugged into a skull-pedestal mounted in the retro-auricular area. We describe the surgical technique and discuss potential and encountered problems. q 2002 Elsevier Science B.V. All rights reserved.

The electric thickness of the semi-finished radome may not meet the requirement for the electromagnetic performance because it varies with both the geometry thickness and the electric inductivity of the radome. One way to obtain the required value of the electric thickness is to compensate the electric thickness error by modifying the wall thickness of the radome. To this end, a grinding machin...

Minimum energy consumption with maximum comfort driving experience defines the ideal human mobility. Recent technological advances in most highly automated systems on electric vehicles regenerative braking system not only enhance safety and level but also present a significant opportunity for eco-driving. This research focuses longitudinal eco-driving considering coordinated control 4WD intelli...

To address the negative impact of large-scale disorderly grid connection EVs on stable operation power grid, a cooperative game control strategy for based tariff leverage is proposed, taking grid-side and user-side economy as objective function, into account EV load state constraint, distribution bi-directional charging discharging pile dynamic members’ revenue constraint. A model piles establi...