Differential electronic effectiveness is one of the most important factors that determine how a traction-modifier system responds to driving conditions. It is determined by several components, including the torque applied to clutch packs, the steering angle sensor, and the yaw rate sensor. These components work together to adjust torque and yaw rate to suit different driving conditions.
Torque distribution strategy
In this paper, we introduce a new torque distribution strategy for a pure electric vehicle. The proposed system consists of three motors: an indirect-driven traction motor in the front wheel and two in-wheel motors inside both rear wheels. Our real-time strategy minimizes energy consumption through the use of particle swarm optimization theory.
The torque distribution strategy is an important aspect of vehicle driving. The controller must be able to provide good performance in a variety of road conditions, including snow, manholes, and wet roads. We can achieve this goal by designing a torque distribution strategy with high accuracy. By incorporating backpropagation neural networks, we can tune the parameters of the torque controller.
The objective of the torque control strategy is to increase vehicle stability, reduce energy consumption, and improve vehicle economy. The torque distribution strategy is based on the centroid variation of straight driving. The centroid variation helps reduce energy consumption and increase vehicle stability. Another proposed distributed driving strategy uses a hierarchical PIDNN-based controller to minimize energy consumption and improve stability.
Vehicle speed
Vehicle speed estimation requires a new means of measuring vehicle speed that is accurate and cost-effective. There are several options, including the use of radar-based sensors or ultrasonic rangefinders. In contrast, laser-based sensors are not suitable for measuring vehicle speed. Furthermore, they require manual input and incur considerable labour costs. Another option is to install vehicle speed monitoring systems, which automate the use of speed cameras. However, this option is costly and has inherent inaccuracies related to adverse weather conditions.
Different automotive systems rely on accurate vehicle speed data for their functions. For example, transmissions need accurate data for shift strategy. Cruise control systems also need accurate information for throttle adjustment. Engine control systems rely on vehicle speed for engine management and other functions. In the past, vehicle speed sensors were installed in the rear differential and transmission. However, these systems may give inaccurate information if the vehicle is skidding or if the tires lack traction.
Vehicle speed and differential electronic effectiveness can be measured with an electronic speed sensor. These sensors measure the wheel rotational speed of each hub motor and communicate with a controller. The controller communicates with the motor controller of each hub motor.
Target yaw rate module
The Target yaw rate module calculates the additional yaw moment in response to a driving maneuver. This control algorithm uses the electronic differential principle and uses the motor feedback speed signal and input Speed instruction error to produce the additional yaw moment. It is used to avoid drive wheel slip caused by a nonlinearity in the vehicle system.
In addition to providing steering-wheel control signals, this module also provides steering-wheel torque information. Depending on the vehicle’s configuration, this signal represents the optimal speed for the wheel to reach. In addition, it may be used to determine the maximum governing speed for a particular gear.
The yaw rate sensor measures yaw rate and applies the data to the summing block 58 of the feed forward controller 53. The summing block 58 receives the desired yaw rate (rdesired) and the actual yaw rate (ractual) as inputs. By using this information, the yaw rate can be controlled to avoid excessive steering and the understeer trend. The target yaw rate can improve the stability of the vehicle under various driving conditions.
Electronic differential load
The termination scheme of a transmission line is a critical consideration for the design of electronic and wireless communications systems. As designs migrate towards longer transmission media and higher data transfer rates, proper line termination becomes more important. However, differential termination can be a confusing subject for designers, as there are several possible methods and their advantages and disadvantages are not always clear. In this article, we’ll look at the various differential termination options and clarify their benefits and drawbacks.
When determining the best configuration for a vehicle’s electronic differential, a number of factors must be considered. The primary goal of an electronic differential is to achieve neutral steer in high-speed, high-distance driving scenarios. This is accomplished by using a closed-loop control system to continuously adjust torque commands to the independent driving motors. The proposed method uses realistic vehicle parameters to generate accurate torque commands for the left and right driving wheels. Simulation results show that the proposed method can provide close-to-neutral steer characteristics.
One of the major benefits of an electronic differential is its ability to provide needed torque for each driving wheel at different speeds. Electronic differentials are used in multi-drive systems and replace the mechanical differential. This feature allows the inner and outer wheels to rotate at different speeds during cornering, which enables them to produce a smaller turning radius. Besides, an electronic differential uses a steering-wheel command signal to control the driving force in each wheel.