KIRKLAND, Wash. — The Bendix ESP Electronic Stability Program is now standard on new Kenworth T680 and T880 tractors, Kenworth officials said.
Bendix ESP full stability meets the National Highway Traffic Safety Administration’s new electronic stability control (ESC) technology mandate, which goes into effect August 1, 2017, on Class 8 tractors with tandem drive axles.
“The T680 on-highway flagship and T880 vocational leader are Kenworth’s most technologically advanced vehicles. Kenworth’s move to standardize on the Bendix ESP system continues our offering of technology systems to help our customers achieve success in their specific operations,” said Kurt Swihart, Kenworth marketing director.
Kenworth T680 and T880 customers will receive, as standard, the Bendix 4S/4M configuration, which has four sensors and four modulators, and includes Bendix® Smart ATC Automatic Traction Control and Bendix ESP.
According to Bendix, its full stability technology is designed to help stabilize the vehicle during loss of control situations on dry, wet, snow and ice-covered roadways.
In addition to using sensors that monitor lateral acceleration, as found on some roll-only systems, the Bendix ESP system also uses sensors to monitor steering angle and vehicle direction.
This allows for detection of a vehicle's impending loss of stability and automatic intervention through dethrottling of the engine and selective application of tractor steer and drive axle brakes, along with trailer brakes, helping the driver to maintain control of the vehicle in a variety of situations.
Nearly 500,000 Bendix ESP systems have been delivered since the product debuted over a decade ago.
Kenworth officials also said the new PACCAR tandem rear axle is now standard on the Kenworth T680 and T880.
The new PACCAR tandem axle is designed to improve the operating efficiency for line haul, regional haul and pick-up and delivery customers. Rated at 40,000 pounds, the PACCAR tandem axle supports a gross combination weight of 80,000 pounds.
The PACCAR tandem axle features a unique pinion-through-shaft design that simplifies power flow through the forward axle for maximum efficiency. The axle also incorporates an innovative laser-welded carrier design that reduces weight and improves fuel economy.
“The new PACCAR tandem rear axle for the aerodynamically efficient Kenworth T680 on-highway model and the T880 vocational flagship model provides enhanced fuel economy, reduces vehicle weight by up to 150 pounds, and complements the excellent performance and fuel efficiency of the PACCAR MX-11 and MX-13 engines,” Swihart said.
The PACCAR tandem axle offers ratios of 2.47 to 3.70 with engine torque compatibility up to 1,650 lb.-ft. and multi-torque rating compatibility up to 1,750 lb.-ft. Warranty coverage is five years or 750,000 miles.