Method and apparatus for controlling a multi-mode powertrain system
    12.
    发明授权
    Method and apparatus for controlling a multi-mode powertrain system 有权
    用于控制多模动力系统的方法和装置

    公开(公告)号:US09002559B2

    公开(公告)日:2015-04-07

    申请号:US13860767

    申请日:2013-04-11

    Abstract: A method for operating a powertrain system to transfer torque among an engine, torque machines, and a driveline in response to an output torque request includes executing a selection scheme to evaluate operating in a plurality of candidate powertrain states including a pseudo-electric vehicle (EV) range responsive to the output torque request. A respective minimum cost for operating the powertrain system in each of the candidate powertrain states including the pseudo-EV range is determined. A preferred powertrain state is selected, and is one of the candidate powertrain states including the pseudo-EV range associated with a minimum of the respective minimum costs. The powertrain system is controlled in the preferred powertrain state responsive to the output torque request.

    Abstract translation: 一种用于响应于输出转矩请求,在发动机,扭矩机和传动系之间操作动力传动系统以传递扭矩的方法包括执行选择方案以评估包括伪电动车辆(EV)的多个候选动力系状态中的操作 )范围响应于输出转矩请求。 确定在包括伪EV范围的每个候选动力系状态下操作动力系统的各自的最小成本。 选择优选的动力系状态,并且是包括与相应的最小成本的最小值相关联的伪EV范围的候选动力系状态之一。 响应于输出扭矩请求,动力系统被控制在优选的动力系状态。

    Method and apparatus for controlling a multi-mode powertrain system
    13.
    发明授权
    Method and apparatus for controlling a multi-mode powertrain system 有权
    用于控制多模动力系统的方法和装置

    公开(公告)号:US08989940B1

    公开(公告)日:2015-03-24

    申请号:US14031680

    申请日:2013-09-19

    Abstract: A powertrain system is configured to transfer torque to an output member. A method for controlling the powertrain system includes prioritizing a plurality of system torque constraint parameters. The system torque constraint parameters are sequentially applied in an order of descending priority. A feasible state for each of the sequentially applied system torque constraint parameters is determined. A solution set including the feasible states for all the sequentially applied system torque constraint parameters is determined, and employed to control operation of the powertrain system in response to an output torque request.

    Abstract translation: 动力系统被配置为将扭矩传递到输出构件。 用于控制动力系统的方法包括对多个系统扭矩约束参数进行优先排序。 系统扭矩约束参数以降序优先级顺序应用。 确定每个顺序施加的系统扭矩约束参数的可行状态。 确定包括所有顺序施加的系统扭矩约束参数的可行状态的解集,并且用于响应于输出转矩请求来控制动力系系统的操作。

    Method and apparatus for managing speeds in a multi-mode transmission
    14.
    发明授权
    Method and apparatus for managing speeds in a multi-mode transmission 有权
    用于管理多模传输中的速度的方法和装置

    公开(公告)号:US08892317B2

    公开(公告)日:2014-11-18

    申请号:US13780667

    申请日:2013-02-28

    Abstract: A multi-mode powertrain system includes a transmission configured to transfer torque among an internal combustion engine, torque machines and an output member. A method for controlling the powertrain system includes determining a desired acceleration profile for the internal combustion engine, determining a constrained acceleration profile by imposing prioritized constraints on the desired acceleration profile, integrating the constrained acceleration profile to determine a preferred speed profile, determining a preferred acceleration profile including a derivative of the preferred speed profile constrained by minimum and maximum hard acceleration constraints, and controlling operation of the internal combustion engine in response to the preferred acceleration profile and the preferred speed profile.

    Abstract translation: 多模动力系统包括被配置为在内燃机,扭矩机和输出构件之间传递转矩的变速器。 用于控制动力系统的方法包括确定用于内燃机的期望的加速度曲线,通过对所需加速度曲线施加优先考虑的约束来确定约束加速度分布,将受限加速度分布积分以确定优选速度分布,确定优选加速度 轮廓包括由最小和最大硬加速度约束约束的优选速度分布的导数,以及响应于优选加速度分布和优选速度分布来控制内燃机的操作。

    BACK ELECTROMOTIVE FORCE MANAGEMENT FOR ELECTRIC VEHICLES

    公开(公告)号:US20250135959A1

    公开(公告)日:2025-05-01

    申请号:US18494764

    申请日:2023-10-25

    Abstract: An electric vehicle battery control system including a first electric motor configured to propel a vehicle in a drive mode in response to a drive current, a second electric motor operative to generate a back electromotive force voltage in a fault mode, a battery, having an open circuit battery discharge voltage, for generating the drive current for coupling to the first electric motor, and a vehicle controller for limiting the drive current in response to a difference between the back electromotive force voltage and the open circuit battery discharge voltage being less than a threshold voltage difference.

    Method of determining a commanded friction brake torque

    公开(公告)号:US11491981B2

    公开(公告)日:2022-11-08

    申请号:US16431184

    申请日:2019-06-04

    Abstract: A method of determining a commanded friction brake torque is disclosed. The method uses inputs, such as from a gearshift sensor, an accelerator pedal sensor, a brake pedal sensor, and engine torque output sensor, a transmission speed input sensor and a transmission speed output sensor, to determine how much engine braking or regenerative braking is occurring. The method then uses this information combined with the braking command information from the brake pedal sensor to determine the amount of friction braking to apply to the friction brakes.

    Method of operating a powertrain system during coasting operation

    公开(公告)号:US11332138B2

    公开(公告)日:2022-05-17

    申请号:US16431191

    申请日:2019-06-04

    Abstract: A method of operating a powertrain system during coasting operation, wherein the powertrain system includes a driveline component (e.g., a transmission, drive shaft, differential, axle or wheel) having an output torque profile. The method includes: (i) determining a desired output torque transition profile for the driveline component between a first transition point before an end of a first state, and a second transition point after a beginning of a second state; and (ii) in response to a braking torque request, generating a friction braking torque command to operate a friction braking system, and adjusting the friction braking torque command during a transitional state between the first and second transition points by an amount corresponding to a difference between a magnitude of the output torque profile and a magnitude of the desired output torque transition profile.

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