Software-defined hybrid powertrain and vehicle

A hybrid heavy truck, comprising:

• a drive motor mechanically connected to the driving shaft of the hybrid heavy truck;
• an engine and at least one power battery pack, each of which can independently provide power to the drive motor;
• and
• a vehicle controller configured to:
• control the engine, so that the engine only can work in a specified combustion state or another specified non-combustion state, and can be switched between the combustion state and the non-combustion state, so as to adjust the power provided by the engine by a first modulation mode, wherein,
• in the combustion state, the engine has a rotating speed in a specified first positive value range, and a torque in a specified positive value range;
• and
• in the non-combustion state, the engine has a rotating speed in a specified second positive value range and a torque in a specified negative value range, the absolute value of the torque in the negative value range being lower than the value of the torque in the positive value range, and,
• the vehicle controller is further configured to:
• adjust the power provided by the power battery pack by the second modulation mode, the second modulation mode being determined based on the required road-load power and the first modulation mode.

A method for retrofitting a traditional heavy truck, comprising:

• providing an existing traditional heavy truck, the existing traditional heavy truck comprising an engine;
• providing a drive motor, the drive motor being mechanically connected to the driving shaft of the traditional heavy truck;
• providing a generator, the generator being bidirectionally and mechanically connected to the engine;
• providing at least one power battery pack, the generator and the power battery pack being configured to independently provide power to the drive motor;
• and
• providing a vehicle controller, the vehicle controller being configured to:
• control the engine, so that the engine only can work in a specified combustion state or another specified non-combustion state, and can be switched between the combustion state and the non-combustion state, so as to adjust the power provided by the engine by a first modulation mode, wherein,
• in the combustion state, the engine has a rotating speed in a specified first positive value range, and a torque in a specified positive value range;
• and
• in the non-combustion state, the engine has a rotating speed in a specified second positive value range and a torque in a specified negative value range, the absolute value of the torque in the negative value range being lower than the value of the torque in the positive value range, and
• the vehicle controller is further configured to:
• adjust the power provided by the power battery pack by the second modulation mode, the second modulation mode being determined based on the required road-load power and the first modulation mode.

A device for controlling a vehicle, comprising:

• a processing unit;
• and
• a memory coupled to the processing unit and containing computer program code, wherein when the computer program code is executed by the processing unit, the computer program code causes the device to perform the actions of:
• controlling an engine of the vehicle, so that the engine only can work in a specified combustion state or another specified non-combustion state, and can be switched between the combustion state and the non-combustion state, so as to adjust the power provided by the engine by a first modulation mode, wherein,
• in the combustion state, the engine has a rotating speed in a specified first positive value range, and a torque in a specified positive value range;
• and
• in the non-combustion state, the engine has a rotating speed in a specified second positive value range and a torque in a specified negative value range, the absolute value of the torque in the negative value range being lower than the value of the torque in the positive value range, and
• the device is further configured to:
• adjust power provided by a power battery pack of the vehicle by a second modulation mode, the second modulation mode being determined based on the required road-load power and the first modulation mode.

A method for controlling a vehicle, comprising:

• controlling an engine of the vehicle, so that the engine only can work in a specified combustion state or another specified non-combustion state, and can be switched between the combustion state and the non-combustion state, so as to adjust the power provided by the engine by a first modulation mode, wherein,
• in the combustion state, the engine has a rotating speed in a specified first positive value range, and a torque in a specified positive value range;
• and
• in the non-combustion state, the engine has a rotating speed in a specified second positive value range and a torque in a specified negative value range, the absolute value of the torque in the negative value range being lower than the value of the torque in the positive value range, and
• adjusting the power provided by a power battery pack of the vehicle by a second modulation mode, the second modulation mode being determined based on the required road-load power and the first modulation mode.