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A Calculation Method of Two-shaft Required Torque of Hybrid Vehicle Transmission

A technology that requires torque and calculation methods, applied in instruments, control/regulation systems, simulators, etc., to solve problems such as increased fuel consumption

Active Publication Date: 2021-06-18
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the calculation method of traditional vehicles is still used to calculate the torque demand of new energy vehicles, it cannot truly reflect the actual demand under the current working conditions, and more importantly, it will cause an increase in fuel consumption.

Method used

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  • A Calculation Method of Two-shaft Required Torque of Hybrid Vehicle Transmission
  • A Calculation Method of Two-shaft Required Torque of Hybrid Vehicle Transmission
  • A Calculation Method of Two-shaft Required Torque of Hybrid Vehicle Transmission

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Effect test

Embodiment 1

[0050] See Figure 2 ~ 9 , The method of mixing the bisector of the mixed vehicle gearbox of the present invention provides a method of calculating a P0 + P3 structure hybrid vehicle controller VCU on a two-axis torque request for a CVT transmission, such as figure 2 As shown, the method confirms the vehicle mode in accordance with the power mode switch input and the SOC state, etc., the requirements torque calculation is performed on each condition.

[0051] The specific process is as follows:

[0052] 1, determine the vehicle mode

[0053] 1) In addition to EV, HEV, vehicle mode, there are both ECO and PWR state, so a total of four working modes are divided into the following:

[0054](1) EVECO mode: The vehicle defaults to EVECO mode, the driver can enter the EV pure electric mode by pressing the EV button. In this mode, the vehicle is purely electric operation, and the torque required is realized by a battery drive motor. In this mode, the active charge can only be charged by t...

Embodiment 2

[0118] The mixing vehicle gearbox biax demand torque calculation method is made of a P0 + P3 structure mixing vehicle, and the CVT transmission VCU is calculated using the vehicle controller VCU, characterized in that the method is based on the power mode switch. Input and SOC status confirm the vehicle mode, and then perform demand torque calculation for each working condition; figure 2 Indicated.

[0119] First, according to the current throttle pedal, the brake pedal, the brake signal, the gear signal, the vehicle speed, the transmission ratio state information is determined, the vehicle travel conditions include: reversing mode, brake mode, travel mode, creep Row mode, limit mode, and sliding mode all mode or some of them;

[0120] Next, the state machine is confirmed that the vehicle mode and the travel conditions mode are respectively calculated according to the vehicle mode, and then output the vehicle operating state signal, and confirm the demand torque according to diffe...

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Abstract

The present invention relates to a method for calculating the required torque of a hybrid vehicle, in particular to a method for calculating the torque required for the two shafts of a transmission of a hybrid vehicle. The axle torque request is calculated. This method confirms the vehicle mode based on the power mode switch input and the SOC state, and then calculates the required torque for each working condition. The method for calculating the required torque of the two shafts of the hybrid vehicle gearbox according to the present invention confirms the vehicle mode according to the power mode switch input and the SOC state, and calculates the required torque for each working condition, which is more suitable for the calculation of the required torque of the two shafts of the hybrid vehicle gearbox.

Description

Technical field [0001] The present invention relates to a method of calculating a mixed power vehicle demand torque, and more particularly to a method of more suitable for mixed power vehicle gearbox biaxial requirements torque calculation method. Background technique [0002] As a new energy vehicle, new energy vehicles can solve the exhaust emissions from traditional automotive engine fuel combustion, with low environmental pollution, low noise, high efficiency, etc., is an important trend in the development of the future transportation industry. [0003] figure 1 The schematic shown shown is shown in the mixing vehicle transmission system, wherein the reference numeral 1 is an engine input, and the reference numeral 2 is a motor torque input, and the reference numeral 3 is traveling, the system is calculated as a driver request torque as a driver request. The method of currently calculating the transmission of gearbox biaxial demand is to refer to the traditional fuel vehicle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 刘卫东吴方义王爱春邬杰
Owner JIANGLING MOTORS
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