From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Auto charge control system in comparison to other vibrator control systems and its performance.
| Identifier | ExFiles\Box 165\6\ img251 | |
| Date | 27th December 1929 | |
| EFC3/AD27.12.29 contd. -3- be looking into in detail with a view to putting to R.{Sir Henry Royce} the case exactly. The remarks contained in the opening paragraphs of Mr.Elliott's memo E1/M21.12.29 fully confirm our own experience and general impression of the position. The remarks on a Lucas full charge and half charge system are also in agreement generally with our remarks above. With regard to the later paragraphs on vibrator control, we should like to take this opportunity of again pointing out that the auto charge control system which we have developed in conjunction with Mr.Royce is really a vibrator control system. It is the same in its application to an already third brush control machine, it is also the same in its general effect in the long run. It is again the same in respect of taking control of the lighting when the battery is, or becomes disconnected. Without putting out the lights it gives a definite indication of something wrong. Emergency running with the battery disconnected is possible but only with a continuous warning. Such a system on one of our experimental cars has in one case definitely saved the situation when a broken battery link occurred. The duty on the contacts is very small in normal running. In our opinion the complication is relatively small, and from actual experience the adaptation of this device is full of promise. It appears to us to be an improvement over the ordinary vibrator regulator scheme, which latter | ||