Patent classifications
B60L15/32
ITERATIVE LEARNING CONTROL METHOD FOR MULTI-PARTICLE VEHICLE PLATOON DRIVING SYSTEM
The present invention discloses an iterative learning control (ILC) method for a multi-particle vehicle platoon driving system, and relates to the field of ILC. The method includes: firstly, discretizing a multi-particle train dynamic equation using a finite difference method to obtain a partial recurrence equation, and then transforming the partial recurrence equation into a spatially interconnected system model; secondly, transforming the spatially interconnected system model into an equivalent one-dimensional dynamic model using a lifting technology, and in order to compensate input delay, designing an ILC law based on a state observer, and thirdly, transforming a controlled object into an equivalent discrete repetitive process according to the ILC law, and converting a controller combination problem into a linear matrix inequality based on stability analysis of the repetitive process. The method is simple and easy to implement, considers structure uncertainty of the system, and has a good control performance and robustness.
AUTOMOTIVE PROPULSION SYSTEM AND AUTOMOBILE
An automotive propulsion system. Both a compressor and a first retarder in a first propulsion system are connected to a first motor, so that the compressor and the first retarder can share a same power source. This can reduce a weight and costs of the automobile and improve use efficiency of the motor to save energy. In the first propulsion system, a first disconnector is disposed to implement a connection or disconnection between the first motor and the first retarder, and a second disconnector is disposed to implement a connection or disconnection between the first motor and the compressor. This can implement independent operation of the first retarder and the compressor. In addition, when a first propulsion system does not provide power, the first disconnector is opened, to prevent the first motor in the first propulsion system from being reversely dragged. This reduces an energy loss.
AUTOMOTIVE PROPULSION SYSTEM AND AUTOMOBILE
An automotive propulsion system. Both a compressor and a first retarder in a first propulsion system are connected to a first motor, so that the compressor and the first retarder can share a same power source. This can reduce a weight and costs of the automobile and improve use efficiency of the motor to save energy. In the first propulsion system, a first disconnector is disposed to implement a connection or disconnection between the first motor and the first retarder, and a second disconnector is disposed to implement a connection or disconnection between the first motor and the compressor. This can implement independent operation of the first retarder and the compressor. In addition, when a first propulsion system does not provide power, the first disconnector is opened, to prevent the first motor in the first propulsion system from being reversely dragged. This reduces an energy loss.
Drive system and method for vehicle employing multiple electronic motors
A drive system with one or more electrically driven axles, a transmission subsystem, which is drivingly coupled to a drive gearbox of each of the electrically driven axles, first and second motors, which are each drivingly coupled to the transmission subsystem and have different motor characteristics, and a controller. The drive gearbox of each axle transmits rotary power to an associated set of vehicle wheels. The controller controls the first and second motors responsive to at least a torque request. Over a significant portion of the operating range of the drive system, the controller is configured to vary the respective magnitudes of the rotary power provided by the first and second motors to satisfy the torque request in a manner that maximizes a combined efficiency of the motors in a predetermined manner.
METHODS FOR CONTROLLING A POWER LEVEL IN AN ENERGY SOURCE OF A VEHICLE UNIT
A method for controlling an articulated vehicle combination comprising a plurality of self-powered vehicle units, wherein each self-powered vehicle unit comprises a propulsion device and a regenerative braking device connected to an energy source, the method comprising determining a current state of charge associated with an energy source of a target vehicle unit comprised in the plurality of self-powered vehicle units, and if the current state of charge is below a desired state of charge, generating a negative torque by the regenerative braking device of the target vehicle unit, and compensating at least partly for the generated negative torque by generating a positive torque by the propulsion device of at least one source vehicle unit comprised in the plurality of self-powered vehicle units, thereby transferring an amount of energy from the energy source of the at least one source vehicle unit to the energy source of the target vehicle unit.
Auxiliary power source device for vehicle
An auxiliary power source device for a vehicle is incorporated in an electric vehicle and includes a three-phase inverter that converts an input DC voltage into a desired three-phase AC voltage and applies the three-phase AC voltage to a load. The auxiliary power source device further includes a filter reactor that is connected to respective output terminals of a three-phase inverter, a filter capacitor that is connected in a Y-shape at an end on a load side of the filter reactor and is not grounded at a neutral point, and a three-phase transformer that includes primary windings that are connected in a Y-shape at the end on the load side of the filter reactor and is grounded at a neutral point and secondary windings that are connected in a delta shape.
Auxiliary power source device for vehicle
An auxiliary power source device for a vehicle is incorporated in an electric vehicle and includes a three-phase inverter that converts an input DC voltage into a desired three-phase AC voltage and applies the three-phase AC voltage to a load. The auxiliary power source device further includes a filter reactor that is connected to respective output terminals of a three-phase inverter, a filter capacitor that is connected in a Y-shape at an end on a load side of the filter reactor and is not grounded at a neutral point, and a three-phase transformer that includes primary windings that are connected in a Y-shape at the end on the load side of the filter reactor and is grounded at a neutral point and secondary windings that are connected in a delta shape.
Modular electric vehicle system
A modular electric vehicle system, allowing for the assembly of many different vehicle configurations using a plurality of interchangeable vehicle assembly modules, including at least two powered vehicle assembly modules in an assembled vehicle each of which has self-contained drive and power systems and controls which can be connected together by a central network bus on the vehicle. At least one of the powered vehicle assembly modules will be a steering module, with the necessary additional controls and components to steer the axle thereon and in turn steer the assembled vehicle. The connection of the network bus and the modules would be done in an interchangeable way so that different modules could be interchangeably placed in the assembled vehicle. Various steering systems, control methodologies and vehicle attachments are also disclosed.
Modular electric vehicle system
A modular electric vehicle system, allowing for the assembly of many different vehicle configurations using a plurality of interchangeable vehicle assembly modules, including at least two powered vehicle assembly modules in an assembled vehicle each of which has self-contained drive and power systems and controls which can be connected together by a central network bus on the vehicle. At least one of the powered vehicle assembly modules will be a steering module, with the necessary additional controls and components to steer the axle thereon and in turn steer the assembled vehicle. The connection of the network bus and the modules would be done in an interchangeable way so that different modules could be interchangeably placed in the assembled vehicle. Various steering systems, control methodologies and vehicle attachments are also disclosed.
Controller for a motor vehicle and method
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, 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 a first of the drive torque sources, during acceleration, deceleration and substantially constant speed operation, substantially continually to apply a drive torque to a first group of one or more wheels to which the first drive torque source is coupled acting in a first direction relative to a longitudinal axis of the vehicle and causes a second of the drive torque sources, during acceleration, deceleration and substantially constant speed operation, substantially continually to apply a drive torque to a second group of one or more wheels to which the second drive torque source is coupled, the direction of drive torque applied to the second group being in a second direction opposite the first such that a net drive torque applied to the first and second group in combination corresponds substantially to a predetermined drive 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.