Configuration Synthesis of Novel Series-Parallel Hybrid Transmission Systems with Eight-Bar Mechanisms

Abstract

This paper presents a design approach for the configuration synthesis of series-parallel hybrid transmissions with eight-bar mechanisms. The final design consists of 54 mechanisms with eight members and twelve joints including a simple planetary gear train (PGT) and a double planet PGT. Then, by using the techniques of power and clutch arrangements, new series-parallel hybrid transmissions are synthesized. The power arrangement process generates 97 clutchless hybrid systems. The clutch arrangement process generates 100 corresponding series-parallel transmissions. To demonstrate the feasibility of the synthesized configurations, a new hybrid transmission is selected as an example to analyze the working principle with operation modes and power flow paths.

On the Innovation Design for Two-Motor Transmissions with Eight-Link Mechanisms in the Electric Vehicles

“…The gear joints and the revolute joints are allocated to the results in Step 1 (see Figure 3(a2)). Figure 3 shows the summarized process of the configuration synthesis for eight-link mechanisms in the novel series-parallel hybrid transmissions [17]. The corresponding feasible specialized chains are detected with three steps:…”

“…With the innovation of Yan's methodology for the creative design [16], Hoang and Yan synthesized and analyzed the feasible configurations of novel transmissions with 12 joints and 8 members [17,18]. Depending on the method, this paper proposes an approach for the synthesis, computer simulation, and modeling of central drive motor transmissions with eight-link mechanisms (shown in Figure 2).…”

“…Depending on the method, this paper proposes an approach for the synthesis, computer simulation, and modeling of central drive motor transmissions with eight-link mechanisms (shown in Figure 2). Figure 3 shows the summarized process of the configuration synthesis for eight-link mechanisms in the novel series-parallel hybrid transmissions [17]. The corresponding feasible specialized chains are detected with three steps:…”

Development of Transmission Systems for Parallel Hybrid Electric Vehicles

“…The result shows that the average engine efficiency slightly improved for the pre-transmission architecture; however, the overall efficiency and acceleration performance are superior for the post-transmission architecture. Hoang and Yan presented the configuration synthesis of series-parallel hybrid transmission with eight-bar mechanisms and demonstrated the feasibility [15]. Bonfiglio et al evaluated the electrical losses and the average ICE efficiency in different operating conditions in the continuously variable transmission architecture and discontinuously variable transmission architecture [16].…”

On the Design of In-Wheel-Hub Motor Transmission Systems with Six-Link Mechanisms for Electric Vehicles

“…With the improved methodology of Yan for the procedural generation of novel possible configurations for HEVs [18,19], Hoang and Yan synthesized possible configurations of series-parallel hybrid transmissions using twelve joints and eight members [20]. Based on such a method, this study describes a procedure for the configuration synthesis and simulation of in-wheel-hub motor transmissions with six-link mechanisms (see Figure 2).…”