The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Kai Schröter - One of the best experts on this subject based on the ideXlab platform.
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Brake Steer Torque optimized corner braking of motorcycles
2017Co-Authors: Kai SchröterAbstract:This thesis deals with the Brake Steer Torque (BST) induced stand-up tendency of Powered Two Wheelers (PTW) and measures to lower the associated risk for running wide on curve accidents with sudden, unforeseen braking. Focus is set on the BST Avoidance Mechanism (BSTAM), a chassis design that eliminates the BST through lateral inclination of the kinematic Steering axis. A simple mathematical model is used to identify its main influences on the driving behavior and derive an optimized system layout. Its theoretical potential is evaluated against the standard chassis using different cornering adaptive brake force distributions and riding styles. For the first time ever, a motorcycle with state-of-the-art brake system (Honda CBR 600 RR, C-ABS) is equipped with a BSTAM and tested in corner braking experiments. Compared to the baseline, it is significantly reducing BST related disturbances and improving directional control. The gained insights can be stepping stones to enhance PTW safety by enabling future assistance systems with autonomous corner braking.
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update on brake Steer Torque optimized corner braking of motorcycles neue erkenntnisse zur bremslenkmomentoptimierten motorrad kurvenbremsung
2012Co-Authors: Kai Schröter, M Wallisch, O Vasylyev, J E Schleiffer, R Ples, Hermann Winner, K Tani, O FuchsAbstract:Braking in curves is a demanding control task on Powered-Two-Wheelers (PTW). Especially in unforeseen or hazardous corner braking situations, many riders show a limited capability to balance their brake action and compensation of the Brake Steer Torque (BST) instantaneously. The subsequent stand-up-tendency of the vehicle can further irritate the rider which may be unable to keep the intended cornering line (“BST-effect” [1-9]). In order to enhance understanding of such events, various influences on the overall Steering Torque demand during corner braking are identified and discussed on the basis of a simple mathematical model. Among other factors, rider posture and driving style have a major influence. While “lean out” worsens the BST-effect, “lean in” lessens it. As a first practical step towards BST optimized corner braking, a Honda CBR600RR motorcycle was prototypically equipped with a BST Avoidance Mechanism (BSTAM [1-5]). Driving experiments with a preliminary setup already prove a significant reduction of BST kick-in and stand-up-tendency, however, currently still at the cost of a relatively high Steering Torque demand during free cornering and an unfamiliar feel in standard driving maneuvers, such as slalom.
O Fuchs - One of the best experts on this subject based on the ideXlab platform.
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update on brake Steer Torque optimized corner braking of motorcycles neue erkenntnisse zur bremslenkmomentoptimierten motorrad kurvenbremsung
2012Co-Authors: Kai Schröter, M Wallisch, O Vasylyev, J E Schleiffer, R Ples, Hermann Winner, K Tani, O FuchsAbstract:Braking in curves is a demanding control task on Powered-Two-Wheelers (PTW). Especially in unforeseen or hazardous corner braking situations, many riders show a limited capability to balance their brake action and compensation of the Brake Steer Torque (BST) instantaneously. The subsequent stand-up-tendency of the vehicle can further irritate the rider which may be unable to keep the intended cornering line (“BST-effect” [1-9]). In order to enhance understanding of such events, various influences on the overall Steering Torque demand during corner braking are identified and discussed on the basis of a simple mathematical model. Among other factors, rider posture and driving style have a major influence. While “lean out” worsens the BST-effect, “lean in” lessens it. As a first practical step towards BST optimized corner braking, a Honda CBR600RR motorcycle was prototypically equipped with a BST Avoidance Mechanism (BSTAM [1-5]). Driving experiments with a preliminary setup already prove a significant reduction of BST kick-in and stand-up-tendency, however, currently still at the cost of a relatively high Steering Torque demand during free cornering and an unfamiliar feel in standard driving maneuvers, such as slalom.
M Wallisch - One of the best experts on this subject based on the ideXlab platform.
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update on brake Steer Torque optimized corner braking of motorcycles neue erkenntnisse zur bremslenkmomentoptimierten motorrad kurvenbremsung
2012Co-Authors: Kai Schröter, M Wallisch, O Vasylyev, J E Schleiffer, R Ples, Hermann Winner, K Tani, O FuchsAbstract:Braking in curves is a demanding control task on Powered-Two-Wheelers (PTW). Especially in unforeseen or hazardous corner braking situations, many riders show a limited capability to balance their brake action and compensation of the Brake Steer Torque (BST) instantaneously. The subsequent stand-up-tendency of the vehicle can further irritate the rider which may be unable to keep the intended cornering line (“BST-effect” [1-9]). In order to enhance understanding of such events, various influences on the overall Steering Torque demand during corner braking are identified and discussed on the basis of a simple mathematical model. Among other factors, rider posture and driving style have a major influence. While “lean out” worsens the BST-effect, “lean in” lessens it. As a first practical step towards BST optimized corner braking, a Honda CBR600RR motorcycle was prototypically equipped with a BST Avoidance Mechanism (BSTAM [1-5]). Driving experiments with a preliminary setup already prove a significant reduction of BST kick-in and stand-up-tendency, however, currently still at the cost of a relatively high Steering Torque demand during free cornering and an unfamiliar feel in standard driving maneuvers, such as slalom.
O Vasylyev - One of the best experts on this subject based on the ideXlab platform.
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update on brake Steer Torque optimized corner braking of motorcycles neue erkenntnisse zur bremslenkmomentoptimierten motorrad kurvenbremsung
2012Co-Authors: Kai Schröter, M Wallisch, O Vasylyev, J E Schleiffer, R Ples, Hermann Winner, K Tani, O FuchsAbstract:Braking in curves is a demanding control task on Powered-Two-Wheelers (PTW). Especially in unforeseen or hazardous corner braking situations, many riders show a limited capability to balance their brake action and compensation of the Brake Steer Torque (BST) instantaneously. The subsequent stand-up-tendency of the vehicle can further irritate the rider which may be unable to keep the intended cornering line (“BST-effect” [1-9]). In order to enhance understanding of such events, various influences on the overall Steering Torque demand during corner braking are identified and discussed on the basis of a simple mathematical model. Among other factors, rider posture and driving style have a major influence. While “lean out” worsens the BST-effect, “lean in” lessens it. As a first practical step towards BST optimized corner braking, a Honda CBR600RR motorcycle was prototypically equipped with a BST Avoidance Mechanism (BSTAM [1-5]). Driving experiments with a preliminary setup already prove a significant reduction of BST kick-in and stand-up-tendency, however, currently still at the cost of a relatively high Steering Torque demand during free cornering and an unfamiliar feel in standard driving maneuvers, such as slalom.
J E Schleiffer - One of the best experts on this subject based on the ideXlab platform.
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update on brake Steer Torque optimized corner braking of motorcycles neue erkenntnisse zur bremslenkmomentoptimierten motorrad kurvenbremsung
2012Co-Authors: Kai Schröter, M Wallisch, O Vasylyev, J E Schleiffer, R Ples, Hermann Winner, K Tani, O FuchsAbstract:Braking in curves is a demanding control task on Powered-Two-Wheelers (PTW). Especially in unforeseen or hazardous corner braking situations, many riders show a limited capability to balance their brake action and compensation of the Brake Steer Torque (BST) instantaneously. The subsequent stand-up-tendency of the vehicle can further irritate the rider which may be unable to keep the intended cornering line (“BST-effect” [1-9]). In order to enhance understanding of such events, various influences on the overall Steering Torque demand during corner braking are identified and discussed on the basis of a simple mathematical model. Among other factors, rider posture and driving style have a major influence. While “lean out” worsens the BST-effect, “lean in” lessens it. As a first practical step towards BST optimized corner braking, a Honda CBR600RR motorcycle was prototypically equipped with a BST Avoidance Mechanism (BSTAM [1-5]). Driving experiments with a preliminary setup already prove a significant reduction of BST kick-in and stand-up-tendency, however, currently still at the cost of a relatively high Steering Torque demand during free cornering and an unfamiliar feel in standard driving maneuvers, such as slalom.