Philippe Wallerand

Title: Innovations by Philippe Wallerand

Introduction

Philippe Wallerand is a notable inventor based in Sartrouville, France. He has made significant contributions to the field of internal combustion engines, particularly in the detection of misfires. With a total of four patents to his name, Wallerand's work showcases his expertise and innovative spirit.

Latest Patents

One of Wallerand's latest patents is a method and device for detecting misfires in a controlled-ignition internal combustion engine. This invention involves determining the gas torque (Cg) for each cylinder combustion. Engine speed (N) and air admission manifold pressure (Pca) are measured during the corresponding prior admission phase. A reference torque (Cref), which is a function of N and Pca, is cartographically calculated by interpolation. The reference torque Cref is corrected by multiplication with a coefficient (KM) associated with the corresponding cylinder in a stabilized engine operating mode. In a transient mode, an additive correction (KA) is also made to derive the expected theoretical torque (Cpr), which is compared with the gas torque (Cg) to determine if a misfire has occurred if Cpr/Cg>S2, where S2 is a threshold value. This process and device are suitable for generating signals representative of engine operation or indicating that the threshold level of harmful components discharged into the exhaust gases is exceeded.

Career Highlights

Throughout his career, Philippe Wallerand has worked with prominent companies in the automotive industry, including Solex and Magneti Marelli France. His experience in these organizations has contributed to his understanding and development of innovative technologies in engine performance.

Collaborations

Wallerand has collaborated with notable professionals in his field, including Christophe Genin and Francesco Paolo Ausiello. These partnerships have likely enhanced his work and led to further advancements in his inventions.

Conclusion

Philippe Wallerand's contributions to the field of internal combustion engines through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the automotive industry and improve engine performance.